G

#include <iostream>
#include <cmath>
#include <vector>
#include <string>
#include <map>

using namespace std;
struct kor
{
    int x,y;
};
int main()
{
    string s=".abcd",s1=".1234";
    int a[5][5];
    map<int,kor> ch,tr;
    for (int i=1; i<=16; i++)
    {
        tr[i].x=(i-1)/4 +1;
        tr[i].y=(i%4==0 ? 4:(i%4));
    }
    for (int i=1; i<5; i++)
    {
        for (int j=1; j<5; j++)
        {
            cin>>a[i][j];
            ch[a[i][j]].x=i;
            ch[a[i][j]].y=j;
        }
    }
    vector<string> ans;
    for (int i=1; i<=16; i++)
    {
        if (ch[i].x!= tr[i].x || ch[i].y!=tr[i].y || (ch[i].x!= tr[i].x && ch[i].y!=tr[i].y ))
        {
            int x;
            int y;
            string l="";
            l+=s[tr[i].x];
            l+=s1[tr[i].y];
            l+='-';
            l+=s[ch[i].x];
            l+=s1[ch[i].y];
            ans.push_back(l);
            x=ch[i].x;
            y=ch[i].y;
            int n;
            for (int j=1; j<=16; j++)
            {
                if (ch[j].x==tr[i].x &&ch[j].y==tr[i].y)
                {
                    n=j;
                    break;
                }
            }
            ch[n].x=x;
            ch[n].y=y;
            ch[i].x=tr[i].x;
            ch[i].y=tr[i].y;
        }
    }
    cout<<ans.size()<<endl;
    for (int i=0; i<ans.size(); i++)
    {
        cout<<ans[i]<<endl;
    }

    return 0;
}