/*
TASK:chai 
LANG:C++
*/
#include<iostream>
using namespace std;
int main(){
    int n,c,lc=0,dc=0;
    char ch[121]={' '};
    cin>>n>>c;
    for(int i=0;i<n+c;i++)
     {
      cin>>ch[i];
     }
    for(int i=0;i<n+c;i++)
     {
      if(ch[i]=='L') lc++;
      if(ch[i]=='R') dc++;
      if(ch[i]=='P') 
       {
        if(lc==dc) { dc=0; cout<<lc<<' '<<'R'<<endl; } 
         else if(lc>dc) { lc=lc-dc; cout<<dc<<' '<<'L'<<endl; }
          else if(lc<dc) { dc=dc-lc; cout<<lc<<' '<<'R'<<endl; }
       }       
     } 
    if(lc==0 || dc==0) cout<<'0'<<endl;
     else cout<<lc<<endl<<dc<<endl; 
    return 0;
}
