def find_min_value(num1, num2, num3, num4):
    min_num = num1
    if min_num > num2:
        min_num = num2
    if min_num > num3:
        min_num = num3
    if min_num > num4:
        min_num = num4
    print("min max=", min_num)

def get_min_value(num1, num2, num3, num4):
    min_num = num1
    if min_num > num2:
        min_num = num2
    if min_num > num3:
        min_num = num3
    if min_num > num4:
        min_num = num4
    return min_num