#include<iostream>
using namespace std;

main()
{
   int n_ele, lim1,lim2, lim3, X[400];
  cin>>n_ele;
  for(int i=0; i<n_ele; i=i+1)
   cin>>X[i];
  cin>>lim1>>lim2>>lim3;
  cout<<"start"<<endl;
  //da fare
  int c1=0, c2=0, c3=0, conta=0;
  while (c1<lim1){
      c2=0;
      if ((conta+lim1-lim2-lim3)<=n_ele){
      cout<<endl<<"strato"<<c1<<endl;
      }
      while(c2<lim2){
          c3=0;
          if ((conta+lim2-lim3)<=n_ele){
            cout<<"r"<<c2<<":";
          }
          while(c3<lim3){
              if (conta<n_ele){
                  cout<<X[conta]<<" ";
              }
              conta++;
              c3++;
          }
          cout<<endl;
          c2++;
      }
      c1++;
  }




  cout<<"end"<<endl;
}