#include<bits/stdc++.h>
int x[100][100],y[100];
using namespace std;
      int main(){
      int n;
	  cin>>n;
	  int day=pow(2,n)-1;
	  int m=day+1;
	  for(int i=1;i<=day;i++){
		  cout<<"<"<<i<<">";
	      for(int k=1;k<=m;k++)y[k]=0;
		  for(int j=1;j<=m;j++){
			  if(y[j]==1)continue;
			  y[j]=1;
			  for(int l=1;l<=m;l++){
				  if(x[j][l]==0&&y[l]==0){
					  cout<<j<<"-"<<l;
					  x[j][l]=1;
					  y[l]=1;
					  cout<<" ";
					  break;
				  }
			  }
		  }
		  cout<<endl;
	  }
	  return 0;
	  }