#include #define int long long using namespace std; signed main(){ int N,K;cin>>N>>K; priority_queue Q; set S; for(int i=0;i>a; Q.push(a); S.insert(a); } while(!Q.empty() && Q.top()>0){ int I=Q.top(); Q.pop(); if(I==1){ puts("No"); return 0; } priority_queue q=Q; while(!q.empty() && q.top()>0 && (I+q.top()-7)/2