#include #include #define int long long #define inf 0x3f3f3f3f3f3f3f3f #define maxn 1234567 #define eps 1e-7 #define mod 1000000007 #define Mod 998244353 #define f(i,a,b) for(int i=a;i<=b;i++) #define r(i,a,b) for(int i=a;i>=b;i--) #define fx(i,a,b,x) for(int i=a;i<=b;i+=x) #define rx(i,a,b,x) for(int i=a;i>=b;i-=x) using namespace std; using namespace __gnu_cxx; using namespace __gnu_pbds; int T; int n,k,pre=19260818; void solve(){ scanf("%lld%lld",&n,&k); printf("19260817 19260818 "); f(i,1,n-k-2){ if(i&1)printf("%lld ",pre-(i+1)),pre-=i+1; else printf("%lld ",pre+(i+1)),pre+=i+1; } if((n-k)&1)f(i,1,k)printf("%lld ",pre-i); else f(i,1,k)printf("%lld ",pre+i); } signed main(){ T=1; // scanf("%lld",&t); while(T--)solve(); return 0; }