B331133131323131133132233133313233313331121133133313231333132312323211   >>    B33113313132313113313223313331323331333112113313331323133313231232321   <<    B331133131323131133132233133313233313331121133133313231333132312323213   >>      B331133131323131133132233133313233313331121133133313231333132312323212   >>