#include<iostream>
#include<algorithm>

using namespace std;
int n;
char a,b,c;

void move(char a,char b,int n)
{
    printf("%c->%d->%c\n",a,n,b);
}

void hanoi(int n,char a,char b,char c)
{
    if(n > 0)
    {
        hanoi(n-1,a,c,b);
        move(a,b,n);
        hanoi(n-1,c,b,a);
    }
}

int main()
{
    cin >>n;
    cin >>a>>b>>c;
    hanoi(n,a,b,c);
    return 0;
}