C++ :

#include<iostream>
#include<cstdio>
#include<cmath>
using namespace std;
string s;char a;
int main()
{
int i,x=0,y=0;
cin>>a;
if(a=='E') 
{
cout<<"0:0"<<endl;
cout<<endl<<"0:0";
return 0;
}
while(a!='E')
{
    s+=a;
	cin>>a;
}
for(i=0;i<s.size();i++)
{
if(s[i]=='W')
x++;
else if(s[i]=='L')
y++;
if((x>=11||y>=11)&&abs(x-y)>=2)
{
cout<<x<<":"<<y<<endl;
x=0;
y=0;
}
if(i==s.size()-1)
{
cout<<x<<":"<<y<<endl;
continue;
}
}
cout<<endl;
x=0;
y=0;
for(i=0;i<s.size();i++)
{
if(s[i]=='W')
x++;
else if(s[i]=='L')
y++;
if((x>=21||y>=21)&&abs(x-y)>=2)
{
cout<<x<<":"<<y<<endl;
x=0;
y=0;
}
if(i==s.size()-1)
{
cout<<x<<":"<<y<<endl;
continue;
}
}
return 0;
}