C111113331333132322331333133313331323133313233213133313231213233231   >>    C11111333133313232233133313331333132313331323321313331323121323323   <<    C111113331333132322331333133313331323133313233213133313231213233233   >>      C111113331333132322331333133313331323133313233213133313231213233232   >>