with open("input.txt") as f:
    lines = f.readlines()

    if lines[0][0] != '-':
        for line in lines:
            print(line)
        exti(0)

    number = int(line[0].split(' ')[1])

    for line in lines[1:]:
        splitted = line.split('\t')
        if len(splitted) < number:
            print()
        else:
            print(split[number - 1])