#! /usr/bin/python

import os,sys

#file1='l1a_2004_270_230427_031704.buf'
#file1='l1a_2004_299_023531_051424.buf'
#file1='l1a_2004_334_123235_020240.buf'
#file1='l1a_2005_021_205407_031600.buf'
#file1='l1a_2005_077_194055_031756.buf'
#file1='l1a_2005_132_145807_020656.buf'
#file1='l1a_2005_135_192219_055556.buf'
#file1='l1a_2005_216_174119_032032.buf'
#file1='l1a_2006_174_185059_014016.buf'
#file1='l1a_2006_220_115531_033200.buf'
#file1='l1a_2007_054_155156_032052.buf'
#file1='l1a_2007_009_051704_032848.buf'
#file1='l1a_2007_127_175636_031952.buf'
#file1='l1a_2007_155_194735_031748.buf'
#file1='l1a_2007_304_015659_004640.buf'
#file1='l1a_2007_356_023524_050252.buf'
#file1='l1a_2008_034_201732_061200.buf
file1='l1a_2008_047_025455_032116.buf'

parts=os.path.splitext(file1)
file2=parts[0]+'_'+parts[1]

a = (open(file1,'r')).read()

print len(a)
print a[0:60]+'<'

# This is where the file name is fixed.

b = 'L1A'+file1[3:12]+a[14:60]+a[58:60]+a[60:]
#b = 'L1A'+file1[3:12]+a[12:60]+a[60:]	# For l1a_2007_127_175636_031952.buf
					# For l1a_2007_356_023524_050252.buf

print len(b)
print b[0:60]+'<'

iu = open(file2,'w')
iu.write(b)
iu.close()

a = (open(file1,'r')).read()
b = (open(file2,'r')).read()

n=32
print a[0:n]
print b[0:n]
print a[n:].find( b[n:] )
print b[n:].find( a[n:] )

sys.exit()