import sys

def main():
  file1 = readFile(sys.argv[1])
  file2 = readFile(sys.argv[2])

  print(sys.argv[1],": ", sep="")
  printFile(file1)
  print("\n",sys.argv[2],": ", sep="")
  printFile(file2)
  file1Chars = countCharacters(file1)
  file2Chars = countCharacters(file2)
  print("\nCharacters in file 1: ",file1Chars)
  print("Characters in file 2: ",file2Chars)
  findLargestFile(file1Chars, file2Chars)

def readFile(fName):
  fp = open(fName, "r")
  return fp.readlines()
  #end readFile

def printFile(Lst):
  for i in range(0, len(Lst), 1):
    print(Lst[i], end="")
  #end printFile

def countCharacters(Lst):
  characters = 0
  for i in range(0, len(Lst), 1):
    characters += len(Lst[i])
  return characters

def findLargestFile(chars1, chars2):
  if(chars1 > chars2):
    print("\n",sys.argv[1]," is the largest file.", sep="")
  elif(chars1 < chars2):
    print("\n",sys.argv[2]," is the largest file.", sep="")
  else:
    print("\nBoth files are the same size.")
main()