S = input()
T = input()
n = len(T)

if n == 1:
    if T in S:
        print(-1)
    else:
        print(0)
    exit()
        

ans = 0

i = S.find(T)

while i != -1:
    ans += 1
    i = S.find(T, i + n - 1)
print(ans)