s = str(input())
t = str(input())
cnt = 0
j = 0
if len(t) == 1:
    print(-1)
    exit()
while j < len(s)-(len(t)-1):
    if s[j:j+len(t)] == t:
        cnt += 1
        j += len(t)
    else:
        j += 1

print(cnt)