#include<bits/stdc++.h>	

using namespace std;

int main(){
    char a1[1001] = {},b1[1001] = {};
	int a[1001] = {},b[1001] = {},c[1001] = {};
	cin >> a1 >> b1;
	int lena = strlen(a1);
	int lenb = strlen(b1);
	for(int i = 0; i < lena; i++){
		a[lena - i] = a1[i] - 48;
	}
	for(int i = 0; i < lenb; i++){
		b[lenb - i] = b1[i] - 48;
	}  
	for(int i = 1;i <= lena;i++){
		int x = 0;
		for(int j = 1;j <= lenb;j++){
			c[i+j-1] = a[i] * b[j] + x + c[i+j-1];
			x = c[i + j - 1] / 10;
			c[i+j-1] %= 10; 
		}
		c[i+lenb] = x;
	}
	int lenc = lena + lenb;
	while(c[lenc] == 0 && lenc > 1){
		lenc--;
	}
	
	for(int i = lenc; i > 0; i--){
		cout << c[i];
	}
	
	
	return 0;
}```