#include<bits/stdc++.h>
using namespace std;
string s;
char a[1000005];
long long x=0;
int main(){
	while (cin>>s) {
		for (int i=0;i<s.size();i++) a[x++]=s[i];
	}
	long long s1=0,s2=0;
	for (int i=0;i<x;i++) {
		if (a[i]=='E') {
			cout<<s1<<":"<<s2<<endl;
			break;
		}
		if (a[i]=='W') s1++;
		if (a[i]=='L') s2++;
		if ((s1==11 || s2==11) && abs(s1-s2)>=2) {
			cout<<s1<<":"<<s2<<endl;
			s1=0;
			s2=0;
		}
	}
	cout<<endl;
	s1=0,s2=0;
	for (int i=0;i<x;i++) {
		if (a[i]=='E') {
			cout<<s1<<":"<<s2;
			break;
		}
		if (a[i]=='W') s1++;
		if (a[i]=='L') s2++;
		if ((s1==21 || s2==21) && abs(s1-s2)>=2) {
			cout<<s1<<":"<<s2<<endl;
			s1=0;
			s2=0;
		}
	}
	return 0;
}