tu dien

a = []
for _ in range(int(input())):
    s1, s2 = input().split()
    if s1.isdecimal():
        a.append(int(s1))
    if s2.isdecimal():
        a.append(int(s2))
if len(a) == 0:
    print("INVALID INPUT")
else:
    sum = 0
    res = 1
    for i in a:
        sum += i
        res *= i
    print(sum, res)