from collections import defaultdict
import sys
from typing import Counter
readline=sys.stdin.readline
write=sys.stdout.write
from math import gcd as GCD
import math

S=readline().rstrip()
T=readline().rstrip()
ans=0
queue=""
if len(T)==1 and T in S:
    ans=-1
else:
    for s in S:
        if len(queue)>=len(T)-1 and queue[len(queue)-len(T)+1:]==T[:-1] and s==T[-1]:
            queue+="."
            ans+=1
        queue+=s
print(ans)