s =input()
t =input()
if len(t) == 1:
    if t not in s:
        print(0)
    else:
        print(-1)
    exit()
    
i=0
cnt=0
while i < len(s):
    if s[i:i+len(t)] == t:
        cnt+=1
        i = i + len(t) - 1
    else:
        i += 1

print(cnt)