#include <bits/stdc++.h>
using namespace std;
#define int long long

#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;

signed main() {
	cin.tie(0)->sync_with_stdio(0);
	int t;
	cin >> t;
	while(t--){
		int n,k;
		cin >> n >> k;
		while(n>1 && k){
			n = (n+1)/2;
			k--;
		}
		cout << n << '\n';
	}
	return 0;
}