Curve DAO (CRV)
CRV/USD

CRV/USD Curve DAO exchanges list

Price of 1 Curve DAO today (8 February)
$ 0.2551
0.176%

Exchanges where Curve DAO is traded

Found 13 бирж where Curve DAO is traded for USD. According to the data on 8 February the most optimal price to exchange CRV for USD is $0.26 for 1 Curve DAO. This rate is fixed at Coinbase Pro at the maximum trading volume of the pair CRV/USD - 1.4 mln. USD.

Exchange Pair Price Volume, 24h
1 Bybit CRV/USDT
$ 0.257
₮ 0.2572
$ 2,266,751 Go
2 Bybit CRV/USDT
$ 0.897
₮ 0.8976
$ 60,225,988 Go
3 Hotcoin CRV/USDT
$ 0.257
₮ 0.2569
$ 6,685,924 Go
4 CITEX CRV/USDT
$ 0.222
₮ 0.2218
$ 6,535,787 Go
5 Binance CRV/USDT
$ 0.255
₮ 0.2552
$ 5,649,699 Go
6 Bibox CRV/USDT
$ 0.585
₮ 0.5852
$ 3,993,343 Go
7 BitMart CRV/USDT
$ 0.255
₮ 0.2556
$ 3,151,968 Go
8 WhiteBIT CRV/USDT
$ 0.256
₮ 0.2541
$ 2,957,823 Go
9 Slex CRV/USDT
$ 0.559
₮ 0.5583
$ 2,904,492 Go
10 BiONE CRV/USDT
$ 0.298
₮ 0.2985
$ 2,785,837 Go
11 CRV/USDT
$ 0.254
₮ 0.2537
$ 2,266,684 Go
12 OKX CRV/USDT
$ 0.256
₮ 0.2560
$ 1,474,339 Go
13 Coinbase Exchange CRV/USD
$ 0.255
$ 0.2554
$ 1,393,672 Go
14 Trubit CRV/USDT
$ 0.254
₮ 0.2544
$ 1,315,695 Go
15 BloFin CRV/USDT
$ 0.255
₮ 0.2549
$ 1,307,941 Go
16 MEXC CRV/USDT
$ 0.254
₮ 0.2540
$ 1,269,657 Go
17 Gate CRV/USDT
$ 0.256
₮ 0.2567
$ 1,238,385 Go
18 XT.COM CRV/USDT
$ 0.256
₮ 0.2561
$ 1,157,818 Go
19 LBank CRV/USDT
$ 0.257
₮ 0.2574
$ 1,149,488 Go
20 Bitget CRV/USDT
$ 0.254
₮ 0.2542
$ 1,096,787 Go
21 Azbit CRV/USDT
$ 0.254
₮ 0.2544
$ 999,146 Go
22 Zoomex CRV/USDT
$ 0.255
₮ 0.2554
$ 918,579 Go
23 Binance CRV/USDC
$ 0.255
USDC 0.2549
$ 897,502 Go
24 Currency.com CRV/USD
$ 0.8
$ 0.7998
$ 858,759 Go
25 Phemex CRV/USDT
$ 0.258
₮ 0.2579
$ 823,704 Go
26 CoinEx CRV/USDT
$ 0.254
₮ 0.2540
$ 672,611 Go
27 Tapbit CRV/USDT
$ 0.255
₮ 0.2551
$ 616,882 Go
28 BTCC CRV/USDT
$ 0.254
₮ 0.2539
$ 600,244 Go
29 BingX CRV/USDT
$ 0.256
₮ 0.2562
$ 545,681 Go
30 Toobit CRV/USDT
$ 0.255
₮ 0.2554
$ 507,296 Go
31 CoinW CRV/USDT
$ 0.256
₮ 0.2562
$ 474,479 Go
32 Kraken CRV/USD
$ 0.257
$ 0.2570
$ 464,608 Go
33 Bitunix CRV/USDT
$ 0.254
₮ 0.2544
$ 459,336 Go
34 bitcastle CRV/USDT
$ 0.254
₮ 0.2546
$ 410,649 Go
35 WEEX CRV/USDT
$ 0.254
₮ 0.2541
$ 387,792 Go
36 Byte Exchange CRV/BTC
$ 0.275
₿ 0.0000037
$ 387,163 Go
37 AscendEX (BitMax) CRV/USDT
$ 0.255
₮ 0.2549
$ 360,524 Go
38 DigiFinex CRV/USDT
$ 0.254
₮ 0.2540
$ 356,947 Go
39 Biconomy.com CRV/USDT
$ 0.256
₮ 0.2559
$ 348,478 Go
40 Bibox CRV/ETH
$ 0.568
Ξ 0.0002
$ 345,266 Go
41 Ourbit CRV/USDT
$ 0.256
₮ 0.2565
$ 336,636 Go
42 Biconomy.com CRV/USDC
$ 0.256
USDC 0.2556
$ 332,032 Go
43 KCEX CRV/USDT
$ 0.255
₮ 0.2555
$ 330,734 Go
44 Uniswap V3 (Arbitrum One) CRV/WETH--13
$ 0.258
WETH--13 0.0001
$ 318,642 Go
45 HitBTC CRV/USDT
$ 0.254
₮ 0.2542
$ 313,919 Go
46 BitKan CRV/USDT
$ 0.254
₮ 0.2541
$ 304,621 Go
47 FMFW.io CRV/USDT
$ 0.254
₮ 0.2541
$ 298,410 Go
48 MEXC CRV/USDC
$ 0.254
USDC 0.2540
$ 265,266 Go
49 Bitazza CRV/USDT
$ 0.255
₮ 0.2550
$ 251,506 Go
50 Bitbaby CRV/USDT
$ 0.254
₮ 0.2542
$ 248,073 Go
51 Byte Exchange CRV/USDC
$ 0.276
USDC 0.2763
$ 245,017 Go
52 BYDFi CRV/USDT
$ 0.255
₮ 0.2548
$ 242,097 Go
53 Dex-Trade CRV/USDT
$ 0.254
₮ 0.2541
$ 227,230 Go
54 Deepcoin CRV/USDT
$ 0.254
₮ 0.2542
$ 214,896 Go
55 Curve (Ethereum) CRV/CVXCRV
$ 0.256
CVXCRV 2.0702
$ 214,361 Go
56 WhiteBIT CRV/USDC
$ 0.254
USDC 0.2538
$ 203,611 Go
57 DeGate CRV/USDC
$ 0.569
USDC 0.5675
$ 197,064 Go
58 MEXC CRV/ETH
$ 0.254
Ξ 0.0001
$ 186,663 Go
59 BTSE CRV/USDT
$ 0.254
₮ 0.2538
$ 176,993 Go
60 Byte Exchange CRV/USDT
$ 0.254
₮ 0.2543
$ 175,629 Go
61 Bilaxy CRV/ETH
$ 0.243
Ξ 0.0001
$ 168,391 Go
62 Bitrue CRV/XRP
$ 0.256
✕ 0.1768
$ 165,259 Go
63 Coinstore CRV/USDT
$ 0.257
₮ 0.2568
$ 164,977 Go
64 Bit2Me CRV/EUR
$ 0.256
€ 0.2166
$ 140,844 Go
65 Kraken CRV/EUR
$ 0.256
€ 0.2166
$ 139,497 Go
66 CoinUp.io CRV/USDT
$ 0.255
₮ 0.2556
$ 133,315 Go
67 Niza.io CRV/USD
$ 0.254
$ 0.2535
$ 123,171 Go
68 Uniswap V3 (Ethereum) CRV/WETH
$ 0.254
WETH 0.0001
$ 117,211 Go
69 Coinbase Exchange CRV/EUR
$ 0.257
€ 0.2175
$ 115,244 Go
70 BitDelta CRV/USDT
$ 0.253
₮ 0.2534
$ 111,062 Go
71 CoinTR CRV/TRY
$ 0.255
₺ 11.12
$ 99,013 Go
72 EXMO CRV/USDT
$ 0.255
₮ 0.2542
$ 98,741 Go
73 Hibt CRV/USDT
$ 0.257
₮ 0.2571
$ 87,175 Go
74 Bitkub CRV/THB
$ 0.277
฿ 8.7200
$ 79,646 Go
75 PointPay CRV/USDT
$ 0.254
₮ 0.2539
$ 76,443 Go
76 Binance CRV/BTC
$ 0.255
₿ 0.0000036
$ 74,869 Go
77 Fairdesk CRV/USDT
$ 0.273
₮ 0.2732
$ 73,589 Go
78 Luno CRV/MYR
$ 0.256
RM 1.0106
$ 70,644 Go
79 Binance CRV/TRY
$ 0.256
₺ 11.18
$ 69,853 Go
80 Bybit EU CRV/USDC
$ 0.256
USDC 0.2559
$ 68,691 Go
81 Curve (Ethereum) CRV/SDCRV
$ 0.256
SDCRV 1.4591
$ 65,435 Go
82 Paribu CRV/TRY
$ 0.255
₺ 11.14
$ 62,942 Go
83 Bybit CRV/USDC
$ 0.256
USDC 0.2559
$ 58,580 Go
84 CoinTR CRV/USDT
$ 0.255
₮ 0.2551
$ 58,468 Go
85 Uniswap V4 (Ethereum) CRV/ETH
$ 0.254
Ξ 0.0001
$ 57,411 Go
86 BtcTurk | Kripto CRV/TRY
$ 0.254
₺ 11.08
$ 57,176 Go
87 LeveX CRV/USDT
$ 0.256
₮ 0.2564
$ 55,879 Go
88 P2B CRV/BTC
$ 0.254
₿ 0.0000037
$ 51,225 Go
89 Bitvavo CRV/EUR
$ 0.254
€ 0.2147
$ 49,644 Go
90 BigONE CRV/USDT
$ 0.257
₮ 0.2570
$ 47,737 Go
91 Gate CRV/BTC
$ 0.256
₿ 0.0000036
$ 45,945 Go
92 Bullish CRV/USDC
$ 0.256
USDC 0.2564
$ 44,349 Go
93 Bitrue CRV/USDC
$ 0.255
USDC 0.2549
$ 43,484 Go
94 BVOX CRV/USDT
$ 0.254
₮ 0.2546
$ 40,495 Go
95 PointPay CRV/USDC
$ 0.254
USDC 0.2538
$ 39,229 Go
96 WhiteBIT CRV/TRY
$ 0.255
₺ 11.11
$ 35,671 Go
97 Niza.io CRV/EUR
$ 0.254
€ 0.2150
$ 34,676 Go
98 P2B CRV/USD
$ 0.253
$ 0.2530
$ 32,575 Go
99 Bittime CRV/IDR
$ 0.256
Rp 4,319.00
$ 30,425 Go
100 OKX CRV/USD
$ 0.256
$ 0.2564
$ 29,929 Go
101 Pionex CRV/USDT
$ 0.255
₮ 0.2551
$ 27,039 Go
102 Bybit CRV/USDC
$ 0.889
USDC 0.8891
$ 27,018 Go
103 Curve (Ethereum) CRV/YCRV
$ 0.257
YCRV 1.5723
$ 26,329 Go
104 XBO.com CRV/USDT
$ 0.254
₮ 0.2543
$ 25,375 Go
105 Bithumb CRV/KRW
$ 0.26
₩ 380.00
$ 23,007 Go
106 Coinbase Exchange CRV/BTC
$ 0.255
₿ 0.0000036
$ 19,417 Go
107 BYDFi CRV/USDC
$ 0.254
USDC 0.2542
$ 19,389 Go
108 Bitrue CRV/USDT
$ 0.255
₮ 0.2553
$ 17,826 Go
109 Gate CRV/ETH
$ 0.256
Ξ 0.0001
$ 17,307 Go
110 Crypto.com Exchange CRV/USDT
$ 0.254
₮ 0.2540
$ 15,974 Go
111 Coinbase Exchange CRV/GBP
$ 0.256
£ 0.1879
$ 15,710 Go
112 Bitfinex CRV/USDT
$ 0.255
₮ 0.2555
$ 14,858 Go
113 Gate CRV/USDC
$ 0.256
USDC 0.2564
$ 14,435 Go
114 Tothemoon CRV/USDT
$ 0.254
₮ 0.2542
$ 14,202 Go
115 LeveX CRV/USDC
$ 0.256
USDC 0.2564
$ 14,091 Go
116 Dex-Trade CRV/BTC
$ 0.255
₿ 0.0000037
$ 13,638 Go
117 Nonkyc.io CRV/USDC
$ 0.257
USDC 0.2570
$ 11,791 Go
118 BtcTurk | Kripto CRV/USDT
$ 0.256
₮ 0.2560
$ 11,549 Go
119 Curve (Base) CRV/CRVUSD
$ 0.254
CRVUSD 0.2552
$ 10,987 Go
120 Bitso CRV/USD
$ 0.255
$ 0.2551
$ 10,776 Go
121 Upbit Indonesia CRV/BTC
$ 0.254
₿ 0.0000037
$ 10,580 Go
122 Upbit CRV/BTC
$ 0.255
₿ 0.0000037
$ 10,472 Go
123 Nonkyc.io CRV/USDT
$ 0.256
₮ 0.2567
$ 10,361 Go
124 Icrypex CRV/USDT
$ 0.253
₮ 0.2533
$ 10,271 Go
125 Uniswap V3 (Optimism) CRV/WETH--17
$ 0.256
WETH--17 0.0001
$ 9,246 Go
126 WEEX CRV/USDC
$ 0.254
USDC 0.2541
$ 8,883 Go
127 Gemini CRV/USD
$ 0.253
$ 0.2529
$ 8,582 Go
128 Crypto.com Exchange CRV/USD
$ 0.254
$ 0.2541
$ 8,350 Go
129 LATOKEN CRV/USDT
$ 0.254
₮ 0.2543
$ 8,206 Go
130 Currency.com CRV/BTC
$ 0.8
₿ 0.0000083
$ 7,704 Go
131 Bitget CRV/BTC
$ 0.253
₿ 0.0000037
$ 6,411 Go
132 Bitfinex CRV/USD
$ 0.254
$ 0.2542
$ 5,768 Go
133 Bitstamp by Robinhood CRV/USD
$ 0.254
$ 0.2541
$ 5,247 Go
134 OpenOcean CRV/USDT
$ 0.262
₮ 0.2618
$ 5,184 Go
135 Nami Exchange CRV/USDT
$ 0.254
₮ 0.2546
$ 4,851 Go
136 Uniswap V2 (Ethereum) CRV/WETH
$ 0.256
WETH 0.0001
$ 4,219 Go
137 Quickswap (v3) CRV/WMATIC
$ 0.254
WMATIC 2.6466
$ 3,828 Go
138 Dex-Trade CRV/USDC
$ 0.253
USDC 0.2535
$ 3,686 Go
139 Luno CRV/ZAR
$ 0.26
R 4.1702
$ 3,290 Go
140 Nonkyc.io CRV/ETH
$ 0.256
Ξ 0.0001
$ 3,257 Go
141 Mercado Bitcoin CRV/BRL
$ 0.255
R$ 1.3311
$ 3,235 Go
142 Uniswap V3 (Base) CRV/WETH--16
$ 0.252
WETH--16 0.0001
$ 2,864 Go
143 OpenOcean CRV/WETH
$ 0.258
WETH 0.0001
$ 2,509 Go
144 Young Platform CRV/EUR
$ 0.254
€ 0.2150
$ 2,373 Go
145 Bitlo CRV/TRY
$ 0.257
₺ 11.19
$ 1,611 Go
146 Uniswap V3 (Polygon) CRV/WMATIC
$ 0.253
WMATIC 2.6359
$ 1,564 Go
147 ChangeNOW CRV/BTC
$ 0.263
₿ 0.0000037
$ 1,499 Go
148 Sushiswap (Polygon POS) CRV/WETH--15
$ 0.254
WETH--15 0.0001
$ 1,496 Go
149 Uniswap V4 (Ethereum) CRV/LINK
$ 0.255
LINK 0.0287
$ 1,269 Go
150 Mudrex CRV/USDT
$ 0.257
₮ 0.2570
$ 1,164 Go
151 TokoCrypto CRV/BTC
$ 0.257
₿ 0.0000037
$ 1,090 Go
152 Indodax CRV/IDR
$ 0.254
Rp 4,275.00
$ 1,030 Go
153 HitBTC CRV/BTC
$ 0.254
₿ 0.0000037
$ 1,003 Go
154 FMFW.io CRV/BTC
$ 0.253
₿ 0.0000036
$ 967 Go
155 Uniswap V3 (Polygon) CRV/WETH--15
$ 0.254
WETH--15 0.0001
$ 916 Go
156 Hata CRV/MYR
$ 0.267
RM 1.0530
$ 854 Go
157 Foxbit CRV/BRL
$ 0.254
R$ 1.3267
$ 776 Go
158 Curve (Ethereum) CRV/PROS--2
$ 0.256
PROS--2 10.21
$ 665 Go
159 Bitazza CRV/THB
$ 0.257
฿ 8.0710
$ 566 Go
160 Bitstamp by Robinhood CRV/EUR
$ 0.26
€ 0.2197
$ 416 Go
161 TokoCrypto CRV/USDT
$ 0.257
₮ 0.2571
$ 363 Go
162 Curve (Ethereum) CRV/CRVUSD
$ 0.252
CRVUSD 0.2554
$ 347 Go
163 Sushiswap CRV/CVXCRV
$ 0.254
CVXCRV 2.0708
$ 312 Go
164 DefiPlaza CRV/USDC
$ 0.23
USDC 0.2300
$ 284 Go
165 Binance US CRV/USDT
$ 0.254
₮ 0.2541
$ 276 Go
166 DefiPlaza CRV/DAI
$ 0.23
◈ 0.2301
$ 273 Go
167 DefiPlaza CRV/WBTC
$ 0.23
WBTC 0.0000042
$ 269 Go
168 Uniswap V4 (Ethereum) CRV/UNI
$ 0.252
UNI 0.0723
$ 248 Go
169 Uniswap V3 (Arbitrum One) CRV/USDC
$ 0.257
USDC 0.2561
$ 215 Go
170 Sushiswap (Arbitrum One) CRV/WETH--13
$ 0.254
WETH--13 0.0001
$ 141 Go
171 DefiPlaza CRV/ETH
$ 0.228
Ξ 0.0001
$ 130 Go
172 Uniswap V4 (Optimism) CRV/OP
$ 0.257
OP 1.3191
$ 122 Go
173 Uniswap V2 (Ethereum) CRV/UNI
$ 0.257
UNI 0.0725
$ 121 Go
174 Korbit CRV/KRW
$ 0.257
₩ 376.00
$ 116 Go
175 WOO X CRV/USDT
$ 0.255
₮ 0.2554
$ 100 Go
176 Uniswap V3 (Arbitrum One) CRV/UNI
$ 0.254
UNI 0.0721
$ 93 Go
177 CoinJar Exchange CRV/AUD
$ 0.264
A$ 0.3759
$ 79 Go
178 CoinJar Exchange CRV/USD
$ 0.263
$ 0.2631
$ 79 Go
179 ApeSwap (Polygon) CRV/WMATIC
$ 0.254
WMATIC 2.6503
$ 78 Go
180 Uniswap V3 (Arbitrum One) CRV/USDT0
$ 0.269
USDT0 0.2703
$ 75 Go
181 TokoCrypto CRV/USDC
$ 0.258
USDC 0.2576
$ 71 Go
182 Uniswap V4 (Arbitrum) CRV/ETH
$ 0.257
Ξ 0.0001
$ 68 Go
183 Uniswap V3 (Ethereum) CRV/USDC
$ 0.254
USDC 0.2536
$ 63 Go
184 Poloniex CRV/USDT
$ 0.23
₮ 0.2306
$ 57 Go
185 NovaDAX CRV/BRL
$ 0.252
R$ 1.3166
$ 54 Go
186 CEX.IO CRV/USDC
$ 0.257
USDC 0.2575
$ 54 Go
187 Curve (Ethereum) CRV/FRXETH
$ 0.259
FRXETH 0.0001
$ 48 Go
188 CEX.IO CRV/EUR
$ 0.258
€ 0.2183
$ 40 Go
189 CEX.IO CRV/USDT
$ 0.257
₮ 0.2568
$ 37 Go
190 LocalTrade CRV/USDT
$ 0.472
₮ 0.4720
$ 35 Go
191 CEX.IO CRV/USD
$ 0.257
$ 0.2569
$ 28 Go
192 CoinJar Exchange CRV/GBP
$ 0.263
£ 0.1929
$ 26 Go
193 CoinJar Exchange CRV/USDC
$ 0.262
USDC 0.2619
$ 26 Go
194 GoPax CRV/KRW
$ 0.312
₩ 456.00
$ 23 Go
195 WazirX CRV/USDT
$ 0.256
₮ 0.2560
$ 16 Go
196 Gravity Finance CRV/WETH--15
$ 0.255
WETH--15 0.0001
$ 13 Go
197 Uniswap V3 (Ethereum) CRV/USDT
$ 0.294
₮ 0.2948
$ 13 Go
198 OKX CRV/EUR
$ 0.258
€ 0.2186
$ 10 Go
199 Oku Trade (Etherlink) CRV/USDC--47
$ 0.257
USDC--47 0.2572
$ 10 Go
200 Coinone CRV/KRW
$ 0.255
₩ 374.00
$ 4 Go
201 ZebPay CRV/INR
$ 0.284
₹ 25.69
$ 3 Go
202 Uniswap V3 (Base) CRV/USDC
$ 0.25
USDC 0.2507
$ 3 Go
203 SpiritSwap CRV/WFTM
$ 0.0032
WFTM 0.0622
$ 1 Go
204 Matcha (Arbitrum One) CRV/MAGIC
$ 0.409
MAGIC 4.0822
$ 1 Go
205 Uniswap V4 (Base) CRV/USDC
$ 0.275
USDC 0.2751
$ 1 Go
206 Luno CRV/NGN
$ 0.239
₦ 326.55
$ 0 Go
207 Polkaswap CRV/XOR
$ 0.0000015
XOR 87,155.11
$ 0 Go

Selling and buying Curve DAO (CRV) for US Dollar

To buy Curve DAO, use the table above.

The maximum daily trading volume is observed in the CRV/USDT trading pair at ByBit and reaches $ 60,225,988 (3.13% of the exchange's total trading volumes) at the price $ 0.9 per 1 CRV.

  • The minimum price to buy CRV for USD is 0.25 - on the exchange Gemini.
  • The maximum price to buy CRV/USD is 0.8 - on the exchange Currency.com.

FAQ on exchanging US Dollar to CRV

Below you will find popular questions and answers about acquiring CRV.

How to exchange US Dollar to Curve DAO profitably?

To convert USD to CRV, you need to choose a favorable exchange rate. Here's how:

  1. Sort the table above by descending CRV to USD prices.
  2. Go to the selected exchange (e.g., Binance) and register.
  3. If the exchange does not support card deposits, consider using peer-to-peer exchanges. Here's a guide on how to use peer-to-peer exchanges.

What exchange directions are available for cryptocurrency Curve DAO?

Today, 40 listings are available for exchange and purchase CRV:

  • for Tether — 0.254 USDT
  • for Bitcoin — 0.0000037 BTC
  • for US Dollar — 0.254 USD
  • for Euro — 0.215 EUR
  • for British Pound Sterling — 0.193 GBP
  • for Ethereum — 0.00012 ETH
  • for USDC — 0.256 USDC
  • for Turkish Lira — 11.12 TRY
  • for WETH--13 — 0.00012 WETH--13
  • for CVXCRV — 2.07 CVXCRV
  • for XRP — 0.177 XRP
  • for WETH — 0.00012 WETH
  • for Thai Baht — 8.72 THB
  • for Malaysian Ringgit — 1.05 MYR
  • for SDCRV — 1.46 SDCRV
  • for Indonesian Rupiah — 4,319 IDR
  • for YCRV — 1.57 YCRV
  • for South Korean Won — 376 KRW
  • for CRVUSD — 0.255 CRVUSD
  • for WETH--17 — 0.00012 WETH--17
  • for WMATIC — 2.65 WMATIC
  • for Brazil Real — 1.33 BRL
  • for South African Rand — 4.17 ZAR
  • for WETH--16 — 0.00012 WETH--16
  • for WETH--15 — 0.00012 WETH--15
  • for Chainlink — 0.0287 LINK
  • for PROS--2 — 10.21 PROS--2
  • for UNI — 0.0725 UNI
  • for DAI — 0.23 DAI
  • for WBTC — 0.0000042 WBTC
  • for OP — 1.32 OP
  • for Australian Dollar — 0.376 AUD
  • for USDT0 — 0.27 USDT0
  • for FRXETH — 0.00012 FRXETH
  • for USDC--47 — 0.257 USDC--47
  • for Indian Rupee — 25.69 INR
  • for WFTM — 0.0622 WFTM
  • for MAGIC — 4.08 MAGIC
  • for Nigerian Naira — 326.55 NGN
  • for XOR — 87,155.11 XOR