Upload_more_ram.cpp

///link of problem : https://codeforces.com/contest/1987/problem/A

#include<bits/stdc++.h>
#include<iostream>                     ///* code by Ahmed Elnemr *///
using namespace std;
///template<typename type1,typename type2>
///#define b 10   --> const int b= 10;

#define  int  long long
#define  ll  long long
#define f first
#define sec second
#define endl "\n"
#define lp(st,nd) for(ll i=st;i<nd;i++)
#define lp2(st,nd) for(ll j=st;j<nd;j++)
#define sp(n) fixed<<setprecision(n)
#define iset set<int>
#define llset set<ll>
#define chset set<char>
#define ivec vector<int>
#define llvec vector<ll>
#define iimap map<int,int>
#define chimap map<char,int>
#define chchmap map<char,char>
#define all(x) x.begin(),x.end()
#define yes cout<<"YES"<<endl
#define no cout<<"NO"<<endl
#define igrid vector<vector<int>>
#define llgrid vector<vector<ll>>

void fast_IO()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}






signed main() {
    fast_IO();
    int t=1;
    cin>>t;
    while(t--) {

        int x=1e9,ans=0,n,k; cin>>n>>k;
        n--;
        ans=n*k+1;

        cout<<ans<<endl;
    }
    return 0;
}