# ﷽
from itertools import accumulate
from math import gcd
import sys
input = lambda: sys.stdin.readline().strip()
def inlst():return [int(i) for i in input().split()]
class PrimeFactorisation:
    def __init__(self, mx):
        self.mx = mx
        self.primes = []
        self.factor = [-1] * (mx + 1)
        for i in range(2, mx + 1):
            if self.factor[i] == -1:
                self.primes += [i]
                for j in range(i, mx + 1, i):
                    self.factor[j] = i
 
    def factorise(self, n):
        """Returns a list of tuples (prime, exponent) representing the prime factorisation of n."""
        prime_factorisation = []
        while n > 1:
            prime, exp = self.factor[n], 0
            while n % prime == 0:
                exp += 1
                n //= prime
            prime_factorisation += [(prime, exp)]
        return prime_factorisation
    def divisors(self,n):
        """returns a list of all distinct factors of n"""
        factors = [1]
        for p, exp in self.factorise(n):
            factors += [p**i * factor for factor in factors for i in range(1, exp + 1)]
        return factors
pf=PrimeFactorisation(1+10**5)
def solve():
    a,b=inlst()
    lst=input().split()
    # s1=set()
    # s2=set()
    # u,v=0,0
    d1=[]
    d2=[]
    for i in range(a,b+1):
        if lst[i-a] =='Fizz' or lst[i-a] =='FizzBuzz':d1.append(i)
    #         tmp=set()
    #         for h,k in pf.factorise(i):tmp.add(h)
    #         if u==0:s1=tmp.copy();u=1
    #         else:s1=s1.intersection(tmp)
        if  lst[i-a]=='Buzz' or lst[i-a] =='FizzBuzz':d2.append(i)
    #         tmp=set()
    #         for h,k in pf.factorise(i):tmp.add(h)
    #         if v==0:s2=tmp.copy();v=1
    #         else:s2=s2.intersection(tmp)
    if d1:aa=list(accumulate(d1,gcd))[-1]
    else:aa=1
    if d2:bb=list(accumulate(d2,gcd))[-1]
    else:bb=1


    print(aa,bb)
    # # aa=s1.difference(s2)
    # # bb=s2.difference(s1)
    # print(s1,s2)
    # if s1:an=list(s1)[0]
    # else:an=1
    # if s2:bn=list(s2)[0]
    # else:bn=1
    # if an==1 and bn==1:
    #     an=3
    #     bn=5
    # # print(b)
    # # print(aa,bb)
    # # print(s1,s2)
    # print(an,bn)




          

    

if __name__ == "__main__":
    # for i in range(int(input())):
        solve()