#include using namespace std; #define rep(i,n) for(int i=0;i=0;i--) #define rng(i,c,n) for(int i=c;i #define _3TpP2FO ios::sync_with_stdio(0),cin.tie(0); typedef long long ll; typedef vector vi; typedef pair pii; void print(){cout<<'\n';} template void print(const h&v,const t&...u){cout<>n>>m; int h=1<