'Bar Cohen'
#question 1
#input: sentence
# letter
#output: the number of times the letter in the sentence
#the place of the letter in the sentence
#the place of the letter in the words of the sentence

def kelet_string():
    x = raw_input("please enter a sentence: ")
    while True:
        if (x == ""):
            x = raw_input("please enter a sentence: ")
        else:
            return x

def kelet_letter():
    y = raw_input("please enter a letter: ")
    while True:
        if (y == ""):
            y = raw_input("please enter a letter: ")
        else:
            return y

def how_many_letter(x, y):
     print "the number of " + y + " in the sentence is: "
     print x.count(y)

def where_letter_in_string(x,y):
    print "the place of " + y + " in the sentence is: "
    import re
    print [m.start() for m in re.finditer(y, x)]

def where_letter_in_word(x,y):
    tmp = x.split()
    for b in tmp:
        import re
        if y in b:
            print "the place of " + y + " in the word " + b + " is: "
            print [m.start() for m in re.finditer(y, b)]

def main():
     x = kelet_string()
     y = kelet_letter()
     how_many_letter(x, y)
     where_letter_in_string(x, y)
     where_letter_in_word(x, y)
if __name__ == '__main__':
    main()