#include<stdio.h>
#include<string.h>


int c[]={0,1,5,2,8,3,9,2,8,7,7,8,4,7,3,8,4,1,5,4,4,5,9,6,2,7,3,6,2,1,1,2,8,1,7,2,8,5,9,8,8,9,3,0,6,1,7,0,6,5,5,6,2,5,1,6,2,9,3,2,2,3,7,4,0,5,1,4,0,9,9,0,6,9,5,0,6,3,7,6,6,7,1,8,4,9,5,8,4,3,3,4,0,3,9,4,0,7,1,0,0};



int main()
{       freopen("cifra.in","r",stdin);
	freopen("cifra.out","w",stdout);

	int t,k=0,i;
	char n[100];
	scanf("%d",&t);
	for(i=0;i<t;i++)
		{  scanf("%s",n);
		   k=0;
		   if(strlen(n)>1)
			k=(n[strlen(n)-2]-'0')*10+(n[strlen(n)-1]-'0');
		   else
			k=n[strlen(n)-1]-'0';
		   printf("%d\n",c[k]);
		}
return 0;
}