N=int(input())
for i in range(N):
	a,b=map(int,input().split())
	if(a==b):
		print(chr(ord('0')+13))
	else:
		x=a-b
		x//=abs(x)
		if(x==-1):
			print(chr(ord('0')+12))
		else:
			print(chr(ord('0')+14))