#include<iostream>
#include<cstdlib>
using namespace std;
char x;
int w1=0,l1=0,w2=0,l2=0,j1=1,j2=1;
int W1[10000],L1[10000];
int W2[5000],L2[5000];
int main(){
	//freopen("tree.in","r",stdin);
	//freopen("tree.out","w",stdout);
	while(cin>>x){
		if(x=='E'){
			W1[j1]=w1;
			L1[j1]=l1;
			W2[j2]=w2;
			L2[j2]=l2;
			break;
		}
		if(x=='\n') continue;
		if(x=='W'){w1++;w2++;}
		if(x=='L'){l1++;l2++;}
		if((w1==11||l1==11)){
			if(w1-2>=l1||l1-2>=w1){
				W1[j1]=w1;
				L1[j1]=l1;
				w1=0;l1=0;
				j1++;
			}
		}
		if(w2==21||l2==21){
			if(w2-2>=l2||l2-2>=w2){
				W2[j2]=w2;
				L2[j2]=l2;
				w2=0;l2=0;
				j2++;
			}
		}
	}
	for(int i=1;i<=j1;i++) cout<<W1[i]<<':'<<L1[i]<<endl;
	cout<<endl;
	for(int j=1;j<=j2-1;j++) cout<<W2[j]<<':'<<L2[j]<<endl;
	cout<<W2[j2]<<':'<<L2[j2];
	return 0;
}