C11111211113313112113313331333133313133313232233133313231333132333112323131   >>    C1111121111331311211331333133313331313331323223313331323133313233311232313   <<    C11111211113313112113313331333133313133313232233133313231333132333112323133   >>      C11111211113313112113313331333133313133313232233133313231333132333112323132   >>