#include<stdio.h>
#include<string.h>
int v[]={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};

void read()
{
	freopen("cifra.in","r",stdin);
	freopen("cifra.out","w",stdout);
	int t,n;
	char s[105];
	scanf("%d\n",&t);
	for(;t;t--)
	{
		gets(s);
		n=strlen(s);
		n--;
		if(n>1)
			n=(s[n-1]-'0')*10+s[n]-'0';
		else n=s[n]-'0';
		printf("%d\n",v[n]);
	}
}

int main()
{
	read();
	return 0;
}