include<bits/stdc++.h>

using namespace std; int main(){

string s;
string b;
while(getline(cin , b)){
	s = s + b;
	if (b.size() == 0) break;
}
int num1 = 0, num2 = 0;
int sum = 0;
for(char c : s){
	if(c == 'W') {
		num1++;
		sum++;
	}else if (c == 'L'){
		num2++;
		sum++;
	}
	else if(c == 'E') {
		cout << num1 << ":" << num2 << endl;
		break;
	}
	if((num1 >= 11 || num2 >= 11) && (abs(num1 - num2) >= 2)){
		cout << num1 << ":" << num2 << endl;
		sum = sum - 11;
		num1 = 0;num2 = 0;
	}
}


cout << endl;

num1 = 0, num2 = 0, sum = 0;
for(char c : s){
	if(c == 'W') {
		num1++;
		sum++;
	}else if (c == 'L'){
		num2++;
		sum++;
	}
	else if(c == 'E') {
		cout << num1 << ":" << num2 << endl;
		break;
	}
	if(( (num1 >= 21 || num2 >= 21) && (abs(num1 - num2) >= 2) )){
		cout << num1 << ":" << num2 << endl;
		sum = sum - 11;
		num1 = 0;num2 = 0;
	}
}

}