#include using namespace std; typedef signed long long ll; #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define FORR2(x,y,arr) for(auto& [x,y]:arr) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) template bool chmax(T &a, const T &b) { if(a bool chmin(T &a, const T &b) { if(a>b){a=b;return 1;}return 0;} //------------------------------------------------------- ll N,K; void solve() { int i,j,k,l,r,x,y; string s; cin>>N>>K; ll sum=N*(N+1)/2; ll S=0; for(int L=1,R=0;L<=N;L++) { while(R<=N&&(S+R)<=sum-K) { R++; S+=R; } if(S==sum-K) { cout<<1<