Problem:
Score : 100 points

Problem Statement

Compute A \times B.

Constraints

1 \leq A \leq 100

1 \leq B \leq 100

All values in input are integers.

Input

Input is given from Standard Input in the following format:

A B

Output

Print the value A \times B as an integer.

Sample Input 1

2 5

Sample Output 1

10

We have 2 \times 5 = 10.

Sample Input 2

100 100

Sample Output 2

10000

Solution in Python (3.8.2) (judge verdict: Runtime Error)

n = int(input())
a = list(map(int, input().split()))
x = 1
if 0 in a:
    x = 0
for j in a:
    x = j*x
    if x > 10**18:
        x = -1
        break
print(x)