#include<bits/stdc++.h>
using namespace std;
char qwq;
int win[1000],w,l,i;
int main()
{
	for(i=1;cin>>qwq&&qwq!='E';i++)
	{
		if(qwq=='W')win[i]=1;
		else win[i]=2;
	}
	for(i=1;;i++)
	{
		if(win[i]==1)w++;
		else if(win[i]==2)l++;
		else if(win[i]==0)
		{
			cout<<w<<":"<<l<<"\n";
			break;
		}
		if(abs(w-l)>=2)
			if(w>=11||l>=11)
			{
				cout<<w<<":"<<l<<endl;
				w=0;l=0;
			}
	}
	cout<<"\n";
	w=0;i=0;
	for(i=1;;i++)
	{

		if(win[i]==1)w++;
		else if(win[i]==2)l++;
		else if(win[i]==0)
		{
			cout<<w<<":"<<l<<"\n";
			break;
		}
		if(abs(w-l)>=2)
			if(w>=21||l>=21)
			{
				cout<<w<<":"<<l<<endl;
				w=0;l=0;
			}
	}
    return 0;
}