def main():
    lines = []
    t = int(input())
    while (t != 0):
        lines.append(input())
        t -= 1

    # Do Problem
    for line in lines:
        for char in range(0, len(line)//2, 2):
            print(line[char], end='')
        print()

if __name__ == "__main__":
    main()