代码如下：

#include<iostream>
#include<cstdio>
using namespace std;
long long a,b,c,x1,x2,y1,y2,ans;
int main(){
	scanf("%lld%lld%lld%lld%lld%lld%lld",&a,&b,&c,&x1,&x2,&y1,&y2);
	for(long long i=x1;i<=x2;i++){
		long long p=-c-a*i;
		if(p%b==0&&p/b>=y1&&p/b<=y2) ans++;
	}
	printf("%lld",ans);
	return 0;
}