#include<bits/stdc++.h>
using namespace std;
char a[5000];
int main()
{
	int n=1;
	int h=0,c=0;
   //11分制
	while(cin>>a[n]&&a[n]!='E')
	{
		if(a[n]=='W'){
			h++;
			n++;
		}
		if(a[n]=='L'){
			c++;
			n++;
		}
		if(h>=11||c>=11)if(abs(h-c)>=2){
			cout<<h<<":"<<c<<endl;
			h=0;
			c=0;
		}
	}
	cout<<h<<":"<<c<<endl;
	cout<<endl;
	h=0;
	c=0;
   //21分制
	for(int i=1;i<=n;i++){
		if(a[i]=='W')h++;
		if(a[i]=='L')c++;
		if(h>=21||c>=21)if(abs(h-c)>=2){
			cout<<h<<":"<<c<<endl;
			h=0;
			c=0;
		}
	}
	cout<<h<<":"<<c;
	return 0;
 }