def helper(s,p):
    s_split=s.split()
    p_split=p.split()
    ans=[]
    i=0
    while i<len(s_split):
        tmp_i=i
        j=0
        while tmp_i < len(s_split) and j <len(p_split) and s_split[tmp_i]==p_split[j]:
            tmp_i+=1
            j+=1
        if j==len(p_split):
            for p in p_split:
                ans.append(p+"/B")
            i=tmp_i
        else:
            ans.append(s_split[i]+"/I")
            i+=1
    return " ".join(ans)
print(helper("i love apple apple love apple apple , hahah i love too.","love apple"))