#include<iostream>
using namespace std;
char x[62528];

int main(){
	int i=1;
	while(true){
		cin>>x[i];
		if(x[i]=='E'){
			break;
		}
		i++;
	}
	i=1;
	int w=0,l=0;
	while(true){
		if(x[i]=='E'){
			cout<<w<<":"<<l<<endl;
			break;
		}
		if(x[i]=='W'){
			w++;
		}else if(x[i]=='L'){
			l++;
		}
		if(w==11||l==11){
			cout<<w<<":"<<l<<endl;
			w=0;
			l=0;
		}
		i++;
	}
	cout<<endl;
	i=1;
	w=0;
	l=0;
	while(true){
		if(x[i]=='E'){
			cout<<w<<":"<<l<<endl;
			break;
		}
		if(x[i]=='W'){
			w++;
		}else{
			l++;
		}
		if(w==21||l==21){
			cout<<w<<":"<<l<<endl;
			w=0;
			l=0;
		}
		i++;
	}
	return 0;
}