C1111133313331323223313331333133313113313223313331313331313231323222321   >>    C111113331333132322331333133313331311331322331333131333131323132322232   <<    C1111133313331323223313331333133313113313223313331313331313231323222323   >>      C1111133313331323223313331333133313113313223313331313331313231323222322   >>