#4#5WA

#include<bits/stdc++.h>
using namespace std;
char c;
int sum1,sum2,sum3,sum4,t1,t2,s1,s2,a[3][62505],b[3][62505];
int main(){
    while((c=getchar())!='E'){
        if(c=='W'){sum1++;sum3++;}
        if(c=='L'){sum2++;sum4++;}
        if(c=='W'||c=='L'){t1++;t2++;}
        if(sum1==11&&sum1>sum2&&sum1-sum2>=2||sum2==11&&sum2>sum1&&sum2-sum1>=2||sum1>=11&&sum1>sum2&&sum1-sum2>=2||sum2>=11&&sum2>sum1&&sum2-sum1>=2){
            s1++;
            t1=0;
            a[1][s1]=sum1;
            a[2][s1]=sum2;
            sum1=0;
            sum2=0;
        }
        if(sum3==21&&sum3>sum4&&sum3-sum4>=2||sum4==21&&sum4>sum3&&sum4-sum3>2||sum3>=21&&sum3>sum4&&sum3-sum4>=2||sum4>=21&&sum4>sum3&&sum4-sum3>2){
            s2++;
            t2=0;
            b[1][s2]=sum3;
            b[2][s2]=sum4;
            sum3=0;
            sum4=0;
        }
    }
    for(int i=1;i<=s1;i++)
    cout<<a[1][i]<<':'<<a[2][i]<<endl;
    cout<<sum1<<':'<<sum2<<endl;
    cout<<endl;
    for(int i=1;i<=s2;i++)
    cout<<b[1][i]<<':'<<b[2][i]<<endl;
    cout<<sum3<<':'<<sum4<<endl;
    return 0;
}