#include<iostream>
using namespace std;
long long b,sum,c,ans,d,e,f,g,h,k,l,m,n,o,p,q,r,s;
int main()
{
	char a;
	while(cin>>a,a!='E')
	{
		b++;
		m++;
		
		if(a=='W')
		sum++;
		else
		ans++;
		if(g<3)
		{
		 if(b==11)
		 {
		e=sum;
		f=ans;
		}
		if(b==21)
		{
		n=sum;
		o=ans;}
	}
}

	for(int i=1;i<=m;i++)
	{
	d++;
	if(g<=2)
	{
		if(d%11==0)
		{
			h++;
			cout<<e<<":"<<f<<endl;
			d==0;
			g++;
		}
		}
	
} k=sum-h*e;l=ans-h*f;  cout<<k<<":"<<l; 
 	
cout<<endl<<endl;;

	for(int i=1;i<=m;i++)
	{
	d++;
	if(s<=2){
		if(d%21==0)
		{
			p++;
			cout<<n<<":"<<o<<endl;
			d==0;
			s++;
		}
}
} q=sum-n*p;r=ans-p*o;  cout<<q<<":"<<r; 
} 

样例能过，请求解答