The input contains two integers *a*<sub class="lower-index">1</sub>, *a*<sub class="lower-index">2</sub> (0 ≤ *a*<sub class="lower-index">*i*</sub> ≤ 32), separated by a single space.
a,b = input().split()
a,b = int(a),int(b)

print((a^b)&1)