# Allison Obourn
# CSC 110, Spring 2018
# Lecture 17

# Prints out the letters of the word Atmosphere
# separated by commas

# takes a string as a parameter and prints its
# letters separated by commas
def print_letters(string):
    for i in range(0, len(string) - 1):
        print(string[i] + ", ", end="")
    print(string[-1], end="")

def main():
    print_letters("Atmosphere")

main()