#include<bits/stdc++.h>
using namespace std;
int main(){
    string s;
    int a;
    for(int i=1;;++i){
        scanf("%1s",&s[i]);
        if(s[i]=='E'){
            a=i-1;
            break;
        }
    }
    int b=0;
    
    while(a+11-b*11>=11){
        int sum1=0,sum2=0;
        for(int i=1;i+b*11<=a&&i<=11;++i){
            if(s[i+b*11]=='W')sum1++;
            if(s[i+b*11]=='L') sum2++;
        }
        printf("%d:%d\n",sum1,sum2);
        b++;
    }
    cout<<endl;
    b=0;
    while(a+22-b*21>=21){
        int sum1=0,sum2=0;
        
        for(int i=1;i+b*21<=a&&i<=21;++i){
            if(s[i+b*22]=='W')sum1++;
            if(s[i+b*22]=='L') sum2++;
        }
        printf("%d:%d\n",sum1,sum2);
        b++;
    }
    return 0;
}