You are given string *s*. Your task is to determine if the given string *s* contains two non-overlapping substrings "AB" and "BA" (the substrings can go in any order).
The only line of input contains a string *s* of length between 1 and 10<sup class="upper-index">5</sup> consisting of uppercase Latin letters.
s1=input()
s2=input()
s1=s1.upper()
s2=s2.upper()
if(s1==s2):
    print(0)
elif (s1<s2):
    print(-1)
else:
    print(1)
   	 		 			  		   					    			