Николай

with open("text.txt", "r") as file:
    s = file.readline()
    k = 0
    kmax = 0
    for i in range(1, len(s)-3):
        if s[i:i+3] == 'XYZ':
            k = k + 1
            i+=2

            if k > kmax :
                kmax = k

        else:
            k = 0

print(kmax)

if beer_num==1:
    print("No more bottles of beer on the wall.")
elif beer_num==2:
    word="bottle"
    print(new_num,word,"of beer on the wall.")
    print()