B331133131323131133132233133313231323222233132313232233132313232332211   >>    B33113313132313113313223313331323132322223313231323223313231323233221   <<    B331133131323131133132233133313231323222233132313232233132313232332213   >>      B331133131323131133132233133313231323222233132313232233132313232332212   >>