/*
TASK:SCHOOL
LANG:C++
*/
#include<iostream>
using namespace std;
int main()
{
    int b[20000],g[20000],q=0,w=0;
    int n,m,k,i,j,s;
    char gg;
    cin>>n>>m>>k;
    n+=m;
    for(i=0;i<n;i++)
    {
     cin>>s>>gg;
     if(gg=='B') {b[q]=s;q++;}
     else {g[w]=s;w++;}
    }
    int work;
    for(i=0;i<q;i++)
    for(j=i+1;j<q;j++)
    if(b[i]<b[j]) {work=b[i];b[i]=b[j];b[j]=work;}
    for(i=0;i<w;i++)
    for(j=i+1;j<w;j++)
    if(g[i]<g[j]) {work=g[i];g[i]=g[j];g[j]=work;}
    if(q>=k&&w>=k) cout<<b[k-1]<<" "<<g[k-1]<<endl;
    if(q<k) cout<<b[q-1]<<" "<<g[k+k-q-1]<<endl;
    if(w<k) cout<<b[k+k-w-1]<<" "<<g[w-1]<<endl;
    return 0;
}
