#include<iostream> using namespace std; int a,b,c[10005],d,e,f,g,h,i,j,k,l; void aa(int x,int z) { int y; if(z>=b) { for(y=1;y<=b;y++) cout<<c[y]; cout<<endl; return ; } for(y=x+1;y<=a;y++) { c[z+1]=y; aa(y,z+1); } } int main() { cin>>a>>b; aa(0,0); return 0; }