#include <iostream>

using namespace std;

int main()
{
    int testNum = 0;
    int index = 0;

    char str[10][101];
    char oddTemp[51] = { '0', };
    char evenTemp[51] = { '0', };

    cin >> testNum;

    for (int i = 0; i < testNum; i++)
    {
        cin >> str[i];

        for (int j = 0; j < sizeof(str[i]) / sizeof(char); j++)
        {
            if (str[i][j] == '\0')
            {
                index = j;
            }
        }

        int evenCount = 0;
        int oddCount = 0;

        for (int j = 0; j < index; j++)
        {
            if (j % 2 == 0)
            {
                evenTemp[evenCount] = str[i][j];
                evenCount++;
            }
            else
            {
                oddTemp[oddCount] = str[i][j];
                oddCount++;
            }
        }

        for (int j = 0; j < index; j++)
        {
            str[i][j] = '0';
        }

        for (int j = 0; j < evenCount; j++)
        {
            str[i][j] = evenTemp[j];
            evenTemp[j] = '\0';
        }

        for (int j = 0; j < oddCount; j++)
        {
            str[i][j + evenCount] = oddTemp[j];
            oddTemp[j] = '\0';
        }

        str[i][evenCount + oddCount] = '\n';
    }

    for (int i = 0; i < testNum; i++)
    {
        for (int j = 0; j < 101; j++)
        {
            printf("%c", str[i][j]);
            if (str[i][j] == '\n') break;
        }
    }
}