#include <iostream>
#include <cmath>
using namespace std;
string s;
void work(int score){
    int my, enemy;
    my = enemy = 0;
    for(int i = 0; i < s.size(); i ++ ){
        if(s[i] == 'W') my ++ ;
        else if(s[i] == 'L')    enemy ++ ;
        else{
            printf("%d:%d\n", my, enemy);
            break;
        }
        if(max(my, enemy) >= score && abs(my - enemy) >= 2){
            printf("%d:%d\n", my, enemy);
            my = enemy = 0;
        }
    }
}
int main(){
    string tmp;
    while(cin >> tmp)   s += tmp;
    work(11);
    cout << endl;
    work(21);
    return 0;
}