## very simple recursion examples.

def repeat(n, ch):
    """prec:  n is an ineger, ch is a one-character string
postc:  returns a string of length n containing the character ch."""
    pass
def print_repeat(n, ch):
    """prec:  n is an ineger, ch is a one-character string
postc:  print a string of length n containing the character ch."""
    pass
def main():
    print(repeat(50, "*"))
    print_repeat(50, "*")
main()