题解

#include<bits/stdc++.h>
using namespace std;
int lcm(int a,int b){
	return (a/__gcd(a,b))*b;
}
int main(){
	int a,b;
	cin>>a>>b;
	cout<<"GCD="<<__gcd(a,b)<<endl;
	cout<<"LCM="<<lcm(a,b)<<endl; 
}