# Exercise 3.28

# Define functions

def findmin(a):
    max_elem = a[0]
    for e in a[1:]:
        if e < max_elem:
            max_elem = e
    return max_elem

def findmax(a):
    max_elem = a[0]
    for e in a[1:]:
        if e > max_elem:
            max_elem = e
    return max_elem

# Test the functions

a = [2, 3, 6, 1, 2, 3, 6, 4]
print(findmin(a))
print(findmax(a))