from sys import stdin


class Matrix(object):

    def __init__(self, x):
        self.mat = x

    def __str__(self):
        return '\n'.join([''.join(['%d\t' % i for i in r]) for r in self.mat])

    def size(self):
        r = len(self.mat)
        c = 0
        for r in self.mat:
            if len(r) > c:
                c = len(r)
        return r, c


exec(stdin.read())