#!/usr/bin/python

import os,sys
import time,datetime

LOG_FILE = "./brathuhn.log"
ROT_SIZE = 2**20
ROT_CRITICAL = 2**20+50*2**10

f = open(LOG_FILE,'wb')

cnt = 0

c = sys.stdin.read(1)
while c!='':
	f.write(c)
	cnt+=1
	if c=='\n' and cnt>=ROT_SIZE or cnt>=ROT_CRITICAL:
		f.close()
		os.rename(LOG_FILE, LOG_FILE+date.strftime("_%Y-%m-%d_%H-%M-%S") )
		f = open(LOG_FILE,'wb')

		date=datetime.datetime.fromtimestamp(time.time())
		print "rotate",cnt,date.strftime("%Y-%m-%d %H:%M:%S")

		cnt = 0
	c = sys.stdin.read(1)