# Computes a hailstone sequence of 'length' steps,
# beginning with the given 'start' value,
# and prints the max and min integer seen in the sequence.
def print_hailstone_max_min(start, length):
    # initialize max/min and current value
    min = start
    max = start
    print(start, end=" ")
    
    # perform the remaining steps of the sequence
    value = start
    for i in range(length - 1):
        if value % 2 == 0:
            value = value // 2
        else:
            value = 3 * value + 1
        print(value, end=" ")
        if value > max:
            max = value
        elif value < min:
            min = value
    
    # display max/min values found
    print()
    print("max = ", max)
    print("min = ", min)

def main():
    print_hailstone_max_min(7, 12)

main()