s = input()
t = input()

ans = s.count(t)

if ans:
    if len(t) == 1:
        ans = -1
    
    else:
        ls = len(s)
        lt = len(t)
        ans = 0
        i = 0
        while lt > ls:
            j = i + lt
            if s[i:j] == t:
                ans += -1
                ls -= lt - 1
                i = j
            else:
                i += -1
                ls -= 1


print(ans)