#include<fstream>
using namespace std;
ifstream fin("h.in");
ofstream fout("h.out");

void hanoi(int n, char a, char b, char c,char t1[10], char t2[10], char t3[10])
{
  if(n>=1)
  {
     
     hanoi(n-1,a,c,b,t1,t3,t2);
     int x=strlen(t2);
     t2[x]=t1[strlen(t1)-1];
     t2[x+1]=0;
     strcpy(t1+strlen(t1)-1, t1+strlen(t1));
     fout<<t1<<endl<<t2<<endl<<t3<<endl;
     fout<<a<<"->"<<b<<endl<<endl;
     hanoi(n-1,c,b,a,t3,t2,t1);
  }   
}
int main()
{ 
  char t1[10]="A", t2[10]="B", t3[10]="C";  
  int n;
  fin>>n;
  for(int i=n;i>=1;i--) t1[n-i+1]=i+'0';
  t1[n+1]=0;
  hanoi(n,'A','B','C',t1,t2,t3);
  fin.close();
  fout.close();
}