C11111211113313112113313331333133313133313232233132322331323131121121   >>    C1111121111331311211331333133313331313331323223313232233132313112112   <<    C11111211113313112113313331333133313133313232233132322331323131121123   >>      C11111211113313112113313331333133313133313232233132322331323131121122   >>