C31232233133313221211113313331333132313331333133313331333133311312321   >>    C3123223313331322121111331333133313231333133313331333133313331131232   <<    C31232233133313221211113313331333132313331333133313331333133311312323   >>      C31232233133313221211113313331333132313331333133313331333133311312322   >>