#include using namespace std; #define modulo 1000000007 #define mod(mod_x) ((((long long)mod_x+modulo))%modulo) #define Inf 1000000001 int main(){ int N; cin>>N; if(N%2==0){ cout<<2<<' '<>t; if(t<3)break; int k,x; cin>>k>>x; cout<