Lang:G++
Edit12345678910111213141516171819202122232425262728293031#include<cstdio>#include<cstring>#include<cmath>#include<algorithm>#include<vector>#include<queue>#include<map>#include<set>#include<string>#include<iostream>using namespace std;typedef long long ll;const int INF = 1000000000;const int MOD = 1000000007;const int N = 100005;const double pi = acos(-1.0);int main(){int n,m;while(~scanf("%d%d",&n,&m)){if(m>n+1)puts("NO");else if(m==n+1){for(int i=0;i<n;i++){printf("10");}puts("1");}else