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#!/usr/bin/env python
# -*- coding: utf-8 -*-

import sys
import codecs

LINE_LIMIT = 61
P_START = u'\u3000\u3000'


def spawnline(u, us=None):
    if us is None:
        us = []
    if len(u) > LINE_LIMIT:
        nu = u[:LINE_LIMIT] + u'\n'
        us.append(nu)
        return spawnline(u[LINE_LIMIT:], us)
    else:
        us.append(u)
        return us


def main():
    input_name = sys.argv[1]

    if (len(sys.argv) >= 3):
        output_name = sys.argv[2]
    else:
        output_name = '_' + input_name

    with codecs.open(input_name, 'r', 'utf-8') as input_file:
        lines = []

        for line in input_file.readlines():
            if line.startswith(P_START):
                line = line.lstrip(P_START)
            lines += spawnline(line)

        with codecs.open(output_name, 'w', 'utf-8') as output_file:
            output_file.write(''.join(lines))

if __name__== '__main__':
    main()