using System;
using System.Linq;
using System.Collections.Generic;
public class Program {
public static void Main() {
char[] inputs = Console.ReadLine().ToArray();
int win = 0;
int lose = 0;
//11分值
for (int i = 0; i < inputs.Length; i++)
{
char currChar = inputs[i];
if (currChar == 'W')
win++;
if (currChar == 'L')
lose++;
//判断当前比分是否满足11分制的获胜条件
int currMax = Math.Max(win, lose);
int curMin = Math.Min(win, lose);
if (currMax < 11)
continue;
if ((currMax - curMin) >= 2)
{
Console.WriteLine(win + ":" + lose);
win = 0;
lose = 0;
}
else
{
continue;
}
}
//输出最后一局
Console.WriteLine(win + ":" + lose);
Console.WriteLine();
//21分值
//更新输赢
win = 0;
lose = 0;
for (int i = 0; i < inputs.Length; i++)
{
char currChar = inputs[i];
if (currChar == 'W')
win++;
if (currChar == 'L')
lose++;
//判断当前比分是否满足11分制的获胜条件
int currMax = Math.Max(win, lose);
int curMin = Math.Min(win, lose);
if (currMax < 21)
continue;
if ((currMax - curMin) >= 2)
{
Console.WriteLine(win + ":" + lose);
win = 0;
lose = 0;
}
else
{
continue;
}
}
//输出最后一局
Console.WriteLine(win + ":" + lose);
}
}