C++ :

#include<iostream>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<string>
#include<cmath>
#include<algorithm>
#include<iomanip>
#include<cctype>
using namespace std;
string s="";
char c;
int a=0,b=0;
void print(){
	printf("%d:%d\n",a,b);
	a=0; b=0;
}
int main(){
	int i;
	//freopen("table.in","r",stdin);
	//freopen("table.out","w",stdout);
	while(1) {
		scanf("%c",&c);
		if(c=='E') break;
		s+=c;
	}
	for(i=0;i<s.size();i++){
		if(s[i]=='W') a++;
		if(s[i]=='L') b++;
		if((a>10||b>10)&&abs(a-b)>1) print();
	}
	 print();
	cout<<endl;
	for(i=0;i<s.size();i++){
		if(s[i]=='W') a++;
		if(s[i]=='L') b++;
		if((a>20||b>20)&&abs(a-b)>1) print();
	}
	 print();
	return 0;
}