间隔着取_(:зゝ∠)_
#include <iostream>
#include <cstdio>
#include <algorithm>
using namespace std;
typedef long long ll;
int n, m;
int init(int i, int j) {
int cnt = 1;
if(i-1 >= 1) cnt *= 2;
if(i+1 <= n) cnt *= 2;
if(j-1 >= 1) cnt *= 2;
if(j+1 <= m) cnt *= 2;
return cnt;
}
int main() {
int T; scanf("%d", &T);
while(T-- > 0) {
scanf("%d%d", &n, &m);
if(n == 1 && m == 1) {
cout << 1 << endl;
continue;
}
ll ans = 0;
for(int i = 1; i <= n; i ++) {
for(int j = 1+(i&1); j <= m; j += 2) {
ans += init(i, j);
}
}
cout << ans << endl;
}
return 0;
}