#!/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