ACM—密码

#include<stdio.h>
int main()
{
    int n,a,b,c,d,i;
    char t;
    while(scanf("%d",&n)!=EOF)
    {
   	   getchar();
       while(n--)
	   {
	   	   a=0;b=0;c=0;d=0;
	   	   i=0;
   	       while(t=getchar())
		    {
		       if(t==‘\n‘) break;
		       i++;
    	       if(t>=‘0‘&&t<=‘9‘) {a++; continue;} 
    	       else if(t>=‘a‘&&t<=‘z‘) {b++; continue;} 
    	       else if(t>=‘A‘&&t<=‘Z‘) {c++; continue;} 
       	       else d++;
  			}
  			a=a>0?1:0;
  			b=b>0?1:0;
  			c=c>0?1:0;
  			d=d>0?1:0;
			if((a+b+c+d)>=3&&i>=8&&i<=16) printf("YES\n");
			else printf("NO\n"); 	
   	   }	
    }
}