from sys import stdin
def main():
    #入力
    readline=stdin.readline
    S=readline().strip()
    T=readline().strip()

    count=0
    if T[0]==T[-1]:
        for i in range(len(S)-len(T)+1):
            if S[i:i+len(T)]==T:
                count+=1
    else:
        i=0
        while i<len(S)-len(T)+1:
            if S[i:i+len(T)]==T:
                count+=1
                i=i+len(T)
            else:
                i+=1

    if count==0:
        print(0)
    else:
        if len(T)==1:
            print(-1)
        else:
            print(count)
if __name__=="__main__":
    main()