#include<bits/stdc++.h>
using namespace std;
char a[100000];
int main(){
	int hh_11=0,hh_21=0,ds_11=0,ds_21=0,k=0,s=0;
	for(int i=0;i<65025;i++){
		cin>>a[i];
		if(a[i]=='E')break;
	}
	for(int i=0;i<65025;i++){
		if(a[i]=='W')hh_11++;
		else if(a[i]=='L') ds_11++;
		if((hh_11>=11&&hh_11>=ds_11+2)||(ds_11>=11&&ds_11>=hh_11+2)){
			cout<<hh_11<<":"<<ds_11<<endl;
			hh_11=0;
			ds_11=0;
			k++;
		}
		if(a[i]=='E'){
			cout<<hh_11<<":"<<ds_11<<endl;
			break;
		}
	}
	cout<<endl;
	for(int i=0;i<65025;i++){
		if(a[i]=='W')hh_21++;
		else if(a[i]=='L') ds_21++;
		if((hh_21>=21&&hh_21>=ds_21+2)||(ds_21>=11&&ds_21>=hh_21+2)){
			cout<<hh_21<<":"<<ds_21<<endl;
			hh_21=0;
			ds_21=0;
			s++;
		}
		if(a[i]=='E'){
			cout<<hh_21<<":"<<ds_21;
			break;
		}
	}
	return 0;
}

样例过了QAQ