def main_Sum(array):
    sum = 0
    for a in array:
        sum += a
    return sum


def main_Max(array):
    max = array[0]
    for b in array:
        if b > max:
            max = b
    return max


def main_Min(array):
    min = array[0]
    for b in array:
        if b <= min:
            min = b
    return min