#include<iostream>
#include<cmath>
#include<cstring>
using namespace std;
string readch()
{
	char c;
	string s;
	while(cin>>c)
	{
		if(c=='E') break;
		s.push_back(c);
	}
	return s;
}
int main()
{
	int a=0,b=0,j=0;
	string s=readch();
	if(s.length()==0)
	{
		cout<<"0:0\n\n0:0";
		return 0;
	}
	while(j!=s.length()-1)
	{
		while(a<11&&b<11)
		{
			if(s[j]=='W') a++;
			if(s[j]=='L') b++;
			if(j==s.length()-1) break;
			j++;
		}
		cout<<a<<':'<<b<<endl;
		a=b=0;
	}
	cout<<endl;
	j=0;
	while(j<s.length()-1)
	{
		while(a<21&&b<21)
		{
			if(s[j]=='W') a++;
			if(s[j]=='L') b++;
			if(j==s.length()-1) break;
			j++;
		}
		cout<<a<<':'<<b<<endl;
		a=b=0;
	}
    return 0;
}