记录编号	173331	评测结果	AAAAAAAAAA
题目名称	[NOIP 2010PJ]数字统计	最终得分	100
用户昵称	Dissolute丶Tokgo	是否通过	通过
代码语言	C++	运行时间	0.004 s
提交时间	2015-07-28 15:47:57	内存使用	0.35 MiB

#include<iostream>
#include<cstdio>
using namespace std;
int a[]={0,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,3,4,6,7,8,9,10,11,12,13,13,13,14,14,14,14,14,14,14,14,14,14,15,15,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16,16,17,17,17,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,21,21,22,22,22,22,22,22,22,22,23,24,26,27,28,29,30,31,32,33,33,33,34,34,34,34,34,34,34,34,34,34,35,35,35,35,35,35,35,35,35,35,36,36,36,36,36,36,36,36,36,36,37,37,37,37,37,37,37,37,37,37,38,38,38,38,38,38,38,38,38,38,39,39,39,39,39,39,39,39,39,39,40,40,40,40,40,40,40,40,41,42,44,45,46,47,48,49,50,51,52,53,55,56,57,58,59,60,61,62,64,66,69,71,73,75,77,79,81,83,84,85,87,88,89,90,91,92,93,94,95,96,98,99,100,101,102,103,104,105,106,107,109,110,111,112,113,114,115,116,117,118,120,121,122,123,124,125,126,127,128,129,131,132,133,134,135,136,137,138,139,140,142,143,144,145,146,147,148,149,150,151,153,154,155,156,157,158,159,160,160,160,161,161,161,161,161,161,161,161,161,161,162,162,162,162,162,162,162,162,163,164,166,167,168,169,170,171,172,173,173,173,174,174,174,174,174,174,174,174,174,174,175,175,175,175,175,175,175,175,175,175,176,176,176,176,176,176,176,176,176,176,177,177,177,177,177,177,177,177,177,177,178,178,178,178,178,178,178,178,178,178,179,179,179,179,179,179,179,179,179,179,180,180,180,180,180,180,180,180,180,180,181,181,181,181,181,181,181,181,181,181,182,182,182,182,182,182,182,182,183,184,186,187,188,189,190,191,192,193,193,193,194,194,194,194,194,194,194,194,194,194,195,195,195,195,195,195,195,195,195,195,196,196,196,196,196,196,196,196,196,196,197,197,197,197,197,197,197,197,197,197,198,198,198,198,198,198,198,198,198,198,199,199,199,199,199,199,199,199,199,199,200,200,200,200,200,200,200,200,200,200,201,201,201,201,201,201,201,201,201,201,202,202,202,202,202,202,202,202,203,204,206,207,208,209,210,211,212,213,213,213,214,214,214,214,214,214,214,214,214,214,215,215,215,215,215,215,215,215,215,215,216,216,216,216,216,216,216,216,216,216,217,217,217,217,217,217,217,217,217,217,218,218,218,218,218,218,218,218,218,218,219,219,219,219,219,219,219,219,219,219,220,220,220,220,220,220,220,220,220,220,221,221,221,221,221,221,221,221,221,221,222,222,222,222,222,222,222,222,223,224,226,227,228,229,230,231,232,233,233,233,234,234,234,234,234,234,234,234,234,234,235,235,235,235,235,235,235,235,235,235,236,236,236,236,236,236,236,236,236,236,237,237,237,237,237,237,237,237,237,237,238,238,238,238,238,238,238,238,238,238,239,239,239,239,239,239,239,239,239,239,240,240,240,240,240,240,240,240,240,240,241,241,241,241,241,241,241,241,241,241,242,242,242,242,242,242,242,242,243,244,246,247,248,249,250,251,252,253,253,253,254,254,254,254,254,254,254,254,254,254,255,255,255,255,255,255,255,255,255,255,256,256,256,256,256,256,256,256,256,256,257,257,257,257,257,257,257,257,257,257,258,258,258,258,258,258,258,258,258,258,259,259,259,259,259,259,259,259,259,259,260,260,260,260,260,260,260,260,260,260,261,261,261,261,261,261,261,261,261,261,262,262,262,262,262,262,262,262,263,264,266,267,268,269,270,271,272,273,273,273,274,274,274,274,274,274,274,274,274,274,275,275,275,275,275,275,275,275,275,275,276,276,276,276,276,276,276,276,276,276,277,277,277,277,277,277,277,277,277,277,278,278,278,278,278,278,278,278,278,278,279,279,279,279,279,279,279,279,279,279,280,280,280,280,280,280,280,280,280,280,281,281,281,281,281,281,281,281,281,281,282,282,282,282,282,282,282,282,283,284,286,287,288,289,290,291,292,293,293,293,294,294,294,294,294,294,294,294,294,294,295,295,295,295,295,295,295,295,295,295,296,296,296,296,296,296,296,296,296,296,297,297,297,297,297,297,297,297,297,297,298,298,298,298,298,298,298,298,298,298,299,299,299,299,299,299,299,299,299,299,300,300,300,300,300,300,300,300,300,300,301,301,301,301,301,301,301,301,301,301,302,302,302,302,302,302,302,302,303,304,306,307,308,309,310,311,312,313,313,313,314,314,314,314,314,314,314,314,314,314,315,315,315,315,315,315,315,315,315,315,316,316,316,316,316,316,316,316,316,316,317,317,317,317,317,317,317,317,317,317,318,318,318,318,318,318,318,318,318,318,319,319,319,319,319,319,319,319,319,319,320,320,320,320,320,320,320,320,320,320,321,321,321,321,321,321,321,321,321,321,322,322,322,322,322,322,322,322,323,324,326,327,328,329,330,331,332,333,333,333,334,334,334,334,334,334,334,334,334,334,335,335,335,335,335,335,335,335,335,335,336,336,336,336,336,336,336,336,336,336,337,337,337,337,337,337,337,337,337,337,338,338,338,338,338,338,338,338,338,338,339,339,339,339,339,339,339,339,339,339,340,340,340,340,340,340,340,340,341,342,344,345,346,347,348,349,350,351,352,353,355,356,357,358,359,360,361,362,364,366,369,371,373,375,377,379,381,383,384,385,387,388,389,390,391,392,393,394,395,396,398,399,400,401,402,403,404,405,406,407,409,410,411,412,413,414,415,416,417,418,420,421,422,423,424,425,426,427,428,429,431,432,433,434,435,436,437,438,439,440,442,443,444,445,446,447,448,449,450,451,453,454,455,456,457,458,459,460,460,460,461,461,461,461,461,461,461,461,461,461,462,462,462,462,462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int main()
{
	freopen("twoj.in","r",stdin);
	freopen("twoj.out","w",stdout);
	int n,m;
	scanf("%d%d",&n,&m);
	printf("%d",a[m-1]-a[n-2]);
	return 0;
}