#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <utility>
#include <tuple>
#include <cstdint>
#include <cstdio>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <deque>
#include <unordered_map>
#include <unordered_set>
#include <bitset>
#include <cctype>
#include <numeric>
#define ll long long int
#define pb push_back
#define rep(i,n) for(int i=0;i<(n);i++)
#define REP(i,n) for(int i=1;i<=(n);i++)
using namespace std;

int mx8[] = {0,0,1,-1,-1,1,-1,1};
int my8[] = {-1,1,0,0,-1,-1,1,1};
int mx4[] = {1,-1,0,0};
int my4[] = {0,0,-1,1};
const int MOD = 1000000007;

ll y[10000005];

int main() {
    int n;
    cin >> n;
    vector<bool> flip(n,false);
    cout << 1 << " " << 1 << endl;
    flip[0] = true;
    while(true){
        int t;
        cin >> t;
        if(t == 0) break;
        int k, x;
        cin >> k >> x;
        rep(i,k) flip[x-1+i] = true;
        rep(i,n){
            if(!flip[i]) {
                cout << 1 << " " << i+1 << endl;
                flip[i] = true;
            }
        }
    }


}