#include<bits/stdc++.h>
using namespace std;
typedef long long ll;

string s[100001];
int main() {
 ios::sync_with_stdio(0);
 cin.tie(0);
 int a, b, fcnt = 0, bcnt = 0;
 cin >> a >> b;
 for (int i=a; i<=b; i++) {
  cin >> s[i];
  if (s[i] == "Fizz") fcnt++;
  else if (s[i] == "Buzz") bcnt++;
  else if (s[i] == "FizzBuzz") fcnt++, bcnt++;
 }
 
 int fans = 0, bans = 0;
 if (fcnt == 0) fans = b + 1;
 else if (fcnt == 1) {
  for (int i=a; i<=b; i++) {
   if (s[i] == "Fizz" || s[i] == "FizzBuzz") {
    fans = i;
    break;
   }
  }
 } else {
  int ss = -1, e = -1;
  for (int i=a; i<=b; i++) {
   if (s[i] == "Fizz" || s[i] == "FizzBuzz") {
    if (ss == -1) ss = i;
    else {
     e = i;
     fans = ss - e;
     break;
    }
   }
  }
 }
 if (bcnt == 0) bans = b + 1;
 else if (bcnt == 1) {
  for (int i=a; i<=b; i++) {
   if (s[i] == "Buzz" || s[i] == "FizzBuzz") {
    bans = i;
    break;
   }
  }
 } else {
  int ss = -1, e = -1;
  for (int i=a; i<=b; i++) {
   if (s[i] == "Buzz" || s[i] == "FizzBuzz") {
    if (ss == -1) ss = i;
    else {
     e = i;
     bans = ss - e;
     break;
    }
   }
  }
 }
 cout << fans << ' ' << bans;
}