#include <iostream>
#include <algorithm>
using namespace std;
string a[105],ans;
int time=0,k=0;
bool cpp(string a,string b){
	return a.length()<b.length();
}
int main(){
	int n,k1;
	cin>>n>>k1;
	for(int i = 0;i<n;i++){
		cin>>a[i];
	}
	cin>>ans; 
	sort(a,a+n,cpp);
	time=0;
	k=0;
	for(int i = 0;i<n;i++){
		time++;
		k++;
		if(k==k1)time+=4;
		if(a[i].length()==ans.length()){
			cout<<time<<' ';	
			break;
		}
	}
	time=0;
	k=0;
	for(int i = 0;i<n;i++){
		time++;
		k++;
		if(k%k1==0)time+=5;
		if(a[i].length()>ans.length()){
			cout<<time<<endl;	
			return 0;
		}
	}
	cout<<time<<endl;
	return 0;
}