29 lines
484 B
C
29 lines
484 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int main()
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{
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int cnt=0;
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int cash;
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scanf("%d",&cash);
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int amax=cash/5;
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int bmax=cash/2;
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int cmax=cash;
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for(int a=1;a<=amax;a++)
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{
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for(int b=1;b<=bmax;b++)
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{
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for(int c=1;c<=cmax;c++)
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{
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if(5*a+2*b+c==cash)
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{
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cnt++;
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}
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}
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}
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}
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printf("%d\n",cnt);
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return 0;
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}
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