B331133131323131133132233133313231323223313233213231333133313232211211   >>    B33113313132313113313223313331323132322331323321323133313331323221121   <<    B331133131323131133132233133313231323223313233213231333133313232211213   >>      B331133131323131133132233133313231323223313233213231333133313232211212   >>