s = input()
t = input()

n = len(s)
m = len(t)
ans = 0
if  len(t) == 1:
    print(-1)
elif t not in s:
    print(0)
else:
    l = 0
    while l + m <= n:
        if s[l:l+m] == t:
            ans += 1
            l = l + m - 1
        else:
            l += 1

    print(ans)