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)

import sys
input = sys.stdin.readline


def main():
    limit = 10**18
    N = int(input())
    A = list(map(int, input().split()))
    assert N == len(A)
    answer = 1
    for i in A:
        answer *= i
        if answer > limit:
            print("-1")
            exit()
        elif answer == 0:
            print(answer)
            exit()
    print(answer)


if __name__ == '__main__':
    main()