B331133131323131133132233133313231333132233132313331331123123313231323211111   >>    B33113313132313113313223313331323133313223313231333133112312331323132321111   <<    B331133131323131133132233133313231333132233132313331331123123313231323211113   >>      B331133131323131133132233133313231333132233132313331331123123313231323211112   >>