C2221333133313331311233132313331333133313331333133313231333133313331313222321   >>    C222133313331333131123313231333133313331333133313331323133313331333131322232   <<    C2221333133313331311233132313331333133313331333133313231333133313331313222323   >>      C2221333133313331311233132313331333133313331333133313231333133313331313222322   >>