# Homework 21, problem 3 -- solution.

def clamp(x, lo, hi):
    if x < lo:
        return lo
    if x > hi:
        return hi
    return x

print(clamp(5, 0, 10))    # 5
print(clamp(-3, 0, 10))   # 0
print(clamp(99, 0, 10))   # 10