import sys, collections
 
sys.setrecursionlimit(500005)
stdin = sys.stdin

ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
ns = lambda: stdin.readline().strip()

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
        j = i + lt
        while j <= ls:
            if s[i:j] == t:
                ans += 1
                i = j
            else:
                i += 1

            j = i + lt

print(ans)