#!/usr/bin/python -u
from __future__ import print_function

import sys
import itertools

def file_iter(fil):
    line = None
    line = fil.readline()
    while line != '':
        yield line
        line = fil.readline()

def row_iter(file_iter, split):
    for line in file_iter:
        yield line.split(split)


def chunk(itr, chunk_amount=25):
    lst = itertools.cycle(itertools.chain([0]*chunk_amount, [1]*chunk_amount))
    def grouper(key):
        return lst.next()
    return (list(x[1]) for x in itertools.groupby(itr, grouper))

def tabularize(fil, count, split):
    itr = row_iter(file_iter(fil), split)
    for chnk in chunk(itr, count):
        maxlens = [map(len,x) for x in chnk]
        maxlens = [max(x) for x in zip(*maxlens)]
        for line in chnk:
            print(' '.join(x.ljust(maxlens[idx]) for idx,x in enumerate(line)).rstrip())

if __name__ == '__main__':
    import argparse
    parser = argparse.ArgumentParser()
    parser.add_argument('-c', '--count', nargs='?', default=25, type=int)
    parser.add_argument('-s', '--split', nargs='?', default=None)
    parser.add_argument('inp', nargs='?', default='-')
    args = parser.parse_args()

    inp = sys.stdin
    if args.inp != '-':
        inp = open(args.inp)

    with inp:
        try:
            tabularize(inp, count=args.count, split=args.split)
        except IOError, e:
            if e.errno != 32: raise