Start: Dec, 04, 2016 12:00:00
杭州师范大学第十届程序设计竞赛—正式
End: Dec, 04, 2016 17:00:00
Time elapsed:
Time remaining:

Problem_ID: C
Result: Accepted
Time: 1ms
Memory: 1092kB
In contest: 1075

#include<stdio.h>
int main(){
	int a,b,c;
	scanf("%d",&a);
	while(a--){
	scanf("%d",&b);
	c=b-7;
	if(c>=8)
	printf("%d\n",c);
	else
	printf("-1\n");
	}
	return 0;
}