#include <bits/stdc++.h>
using namespace std;
inline long long read() {
  long long x = 0;
  char ch = getchar();
  bool f = 0;
  for (; !isdigit(ch); ch = getchar())
    if (ch == '-') f = 1;
  for (; isdigit(ch); ch = getchar()) x = x * 10 + ch - '0';
  return f ? -x : x;
}
void write(long long x) {
  if (x < 0) putchar('-'), x = -x;
  if (x >= 10) write(x / 10);
  putchar(x % 10 + '0');
}
void writeln(long long x) {
  write(x);
  putchar('\n');
}
void writep(long long x) {
  write(x);
  putchar(' ');
}
long long const N = 100 + 3;
long long n, k, a[N];
char s[N];
signed main() {
  n = read();
  k = read();
  for (long long i = 1; i <= n; i++) {
    scanf("%s", s + 1);
    a[strlen(s + 1)]++;
  }
  scanf("%s", s + 1);
  long long len = strlen(s + 1), ans = 0;
  for (long long i = 1; i < len; i++) ans += a[i];
  writep((ans + 1) + ans / k * 5);
  ans += a[len];
  writeln(ans + (ans - 1) / k * 5);
}
