#include <iostream>
#include <cstring>
using namespace std;
int main(){
  int x=0,cnt=0;
  char t,a[21];
  while(1){
    cin>>t;
    if(t=='E')break;
    if(t=='W'||t=='L')a[x++]=t;
  }
  int n=0,m=0,l=strlen(a);
  for(int i=0;i<l;i++){
    cnt++;
    if(a[i]=='W')n++;
    if(a[i]=='L')m++;
    if(cnt>=11&&(n-m>=2||m-n>=2)){
      cout<<n<<":"<<m<<endl;
      n=0;m=0;
      cnt=0;
    }
  }
  if(n>0||m>0)cout<<n<<":"<<m<<endl;
  cout<<endl;
  cnt=0;m=0;n=0; 
  for(int i=0;i<l;i++){
    cnt++;
    if(a[i]=='W')n++;
    if(a[i]=='L')m++;
    if(cnt>=21&&(n-m>=2||m-n>=2)){
      cout<<n<<":"<<m<<endl;
      n=0;m=0;
      cnt=0;
    }
  }
  if(n>0||m>0)cout<<n<<":"<<m<<endl;
  cout<<endl;
return 0;
}

求各位大佬、高人帮忙debug一下，小人感激不尽！