C1311213331333132332133313331333133313331333131333133313112113313231313321   >>    C131121333133313233213331333133313331333133313133313331311211331323131332   <<    C1311213331333132332133313331333133313331333131333133313112113313231313323   >>      C1311213331333132332133313331333133313331333131333133313112113313231313322   >>