#include<stdio.h>
void main()
{
	int a,b,c,i=0;
	for(a=1;a<100;a++){
		for(b=1;b<(100-a)/2;b++){
			c=(100-a-2*b)/5;
			if(a+2*b+5*c==100)
				i++;	
		}
	}
	printf("%d",i);
}
/**************************************************************
	Problem: 1025
	User: admin
	Language: C
	Result: Accepted
	Time:4 ms
	Memory:1036 kb
****************************************************************/