#include<stdio.h>
#include<string.h>
int main () {
	char nr[101];
	int n,t,x,i,c,s=1,v[101];
	FILE *in=fopen("cifra.in","r"), *out=fopen("cifra.out","w");
	fscanf(in,"%d",&t);
	for(i=1;i<=99;i++){
		c=i%4;
		while(c){
			s=s+((s*i)%10);
			c--;
		}
		v[i]=s;
	}
	while(t){
		fscanf(in,"%s",nr);
		n=strlen(nr);
		if(n==1)
			x=nr[n-1]-'0';
		else
			x=(nr[n-2]-'0')*10+(nr[n-1]-'0');
		fprintf(out,"%d\n",x);
	}
	fclose(in);
	fclose(out);
	return 0;
}