old = list(map(int,input().split('.')))
old[0] *= 1000*2
old[1] *= 1000*2
old = int(''.join(map(str,old)))
num = list(map(int,input().split('.')))
num[0] *= 1000*2
num[1] *= 1000*2
num = int(''.join(map(str,num)))
print('YES' if old >= num else 'NO')