def myfun(x, y, z):
    if x == "hello":
        print "hello world"
    elif y == "goodbye":
        print "goodbye cruel world"
    else:
        print "oh no"


myfun("apple", "orange", "pear")

def primetest (y):
    x = y/2
    while x > 1:
        if y % x == 0:
            print y, "has factor", x
            break
        x = x - 1
    else:
        print y, "is prime"

def paramtest (x=10, y=5):
    print x, y

    
def min1(first, *args):
    res = first
    for arg in args:
        if arg < res:
            res = arg

    return res