#include <iostream>
#include <cstdio>
typedef long long ll;
typedef unsigned long long ull;
using namespace std;
int f[2] = {
	11,21
};
int a[6250000], n = 0;
int main(){
    char num;
    while(1){
		cin >> num;
		if(num == 'E') break;
		else if(num == 'W') a[n++] = 1;
		else if(num == 'L') a[n++] = 0;
	}
	for(int i = 0; i < 2; i++){
		int w = 0,l = 0;
		for(int j = 0; j < n; j++){
			w += a[j]; l += 1 - a[j];
			if(max(w,l) >= f[i] && abs(w - l) >= 2){
				cout << w << ": " << l << endl;
				w = l = 0;
			}
		}
		printf("%d: %d\n" , w,l);
		printf("\n");
	}
	return 0;
}

全WA， 但是样例都能过