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())
a1=list(map(int,input().split()))
x=1
if 0 in a1:
    print(0)
else:
    for a in a1:
        x=x*a
        if x>1e18:
            print(-1)
            break
if x<=1e18:
    print(x)