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

int main(){
    int N, k = 0, t = 0;
    char input[101];
    char ecryp_1[130] = {}, ecryp_2[130] = {};
    bool z = true;

    while (z)
    {
        scanf("%d", &N);
        if (N > 0 && N<11) z=false;
        else continue;
    }

    for (int i = 0; i < N; i++)
    {
        scanf("%s", &input);
        for (int j = 0; j < strlen(input); j++)
        {
            if (j % 2 == 0) ecryp_1[t++] = input[j];
            else ecryp_2[k++] = input[j];
        }
        strcat(ecryp_1, ecryp_2);
        printf("%s\n", ecryp_1);
        k = 0, t = 0;
    }
    return 0;}