C1111121111331311211331333133313331313331323223313232233132213131   >>    C111112111133131121133133313331333131333132322331323223313221313   <<    C1111121111331311211331333133313331313331323223313232233132213133   >>      C1111121111331311211331333133313331313331323223313232233132213132   >>