#include #define rep(i, n) for(int i= 0; i < (n); i++) using ll= long long int; using namespace std; template inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } ll mod= 1e9 + 7; ll mmod= 998244353; int main(){ int n; cin >>n; if(n%2==1){cout << 1 << " " << (n+1)/2 << endl;} else{cout << 2 << " " << n/2 <>t; if(t==0 || t==1)return 0; if(t==2 || t==3){ int k,x; cin >> k >>x; if(t==2)return 0; int d; if(x<(n+2)/2){d=x+(n+2)/2;}else{d=x-(n+2)/2;} if(n%2==1){cout << k << " " << d << endl;} else{cout << k << " " << d << endl;} } } }