// by ikg
#include <bits/stdc++.h>
using namespace std;
const int E9 = 1e9;
const int E8 = 1e8;
const int E7 = 1e7;
const int E6 = 1e6;
const int E5 = 1e5;
const int E4 = 1e4;
const int E3 = 1e3;
const int N = 5e5+7;
const long long INF = 1e18;
#define gcd __gcd
#define ll long long
#define pb push_back
#define re return
#define fi first
#define se second
#define ld long double
#define debug cout<<"bug "
#define endl cout<<'\n'
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(),(x).end()
#define ios ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define sd(x) scanf("%d",&x)
#define sll(x) scanf("%lld",&x)
#define sld(x) scanf("%lf",&x)
#define pd(x) printf("%d",x)
#define pll(x) printf("%lld",x)
#define pld(x) printf("%lf",x)
void solve()
{
int n, m, ans=0;
cin >> n >> m;
if (n!=1&&m!=1) ans=min(n,m)+min(n,m)-2;
cout << ans;
}
int main ()
{
ios;
int q;
cin >> q;
while (q--)
{
solve();
endl;
}
}
