"""File:     most_freq_char.py
   Purpose:  Find the most frequently occurring character a string

   Run:      python most_freq_char.py

   Input:    A string
   Output:   The most frequently occuring character in the string
"""
def how_many(let, s):
   """Count the number of times let occurs in s"""
   count = 0
   for l in s:
      if l == let:
         count = count+1
   return count

#----------------------------------------------------------------------
s = raw_input("Enter a string\n   ")

most_freq_count = 0

for let in s:
   count = how_many(let, s)
   if count > most_freq_count:
      most_freq = let
      most_freq_count = count

if most_freq_count == 0:
   print "There aren't any characters in the string you entered!"
else:
   print "The most frequently occurring character is", most_freq
   print "It occurred", most_freq_count, "times"