C1311213331333132332133313331333133313331333131333133313112113313222321   >>    C131121333133313233213331333133313331333133313133313331311211331322232   <<    C1311213331333132332133313331333133313331333131333133313112113313222323   >>      C1311213331333132332133313331333133313331333131333133313112113313222322   >>