#include #include #include #include #include #include #include #include #include #include #include #include #include #include typedef long long ll; using namespace std; #define debug(x) cerr << #x << " = " << (x) << endl; #define mod 1000000007 //1e9+7(prime number) #define INF 1000000000 //1e9 #define LLINF 2000000000000000000LL //2e18 #define SIZE 100010 int main(){ int n,k; cin >> n >> k; int c = n-k-2; int last = 5000001; printf("%d %d",5000000,5000000+1); for(int i=2;i 0){ c--; printf(" %d",last^1); last ^= 1; }else{ if(last & 1){ printf(" %d",last+i); }else{ printf(" %d",last-i); } } } printf("\n"); return 0; }