#! /usr/bin/python
fn = "a.txt"
fw = open(fn,'w+')
fw.write('aaaa')
fw.readlines()
fw.tell()
fw.close()
#! /usr/bin/python
fn = "a.txt"
fw = open(fn,'w+')
fw.write('aaaa')
fw.readlines()
fw.tell()
fw.close()
#! /usr/bin/python
fn = "a.txt"
fw = open(fn,'w+')
fw.write('aaaa')
fw.readlines()
fw.tell()
fw.close()
#! /usr/bin/python
fn = "a.txt"
fw = open(fn,'w+')
fw.write('aaaa')
fw.readlines()
fw.tell()
fw.close()