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

int main(){
    long long int N, S1[1000];
    char S[1000];
    int i, j, k, len;

    scanf("%lld\n", &N);
    for(i = 0; i < N; i++){
        scanf("%s\n", S);
        len = strlen(S);
        for(j = 0; j < len; j++){
            S1[j] = (int)(S[j] - '0');
        }
        //printf("%d %d\n", S1[0], S1[1]);
        for(j = 0; j < len - 1; j++){
            for(k = 1; k < len - j; k++){
                S1[k - 1] = S1[k - 1] + S1[k];
                if(S1[k - 1] >= 10){
                    S1[k - 1] = (S1[k - 1]%10) + S1[k - 1]/10;
                }
            }
            //printf("%d %d %d %d\n", S1[0], S1[1], S1[2], S1[3]);
        }
        printf("%lld\n", S1[0]);
    }

    return 0;

}