C1111233133313231133133313331333133313231331121133132212111112123331   >>    C111123313331323113313331333133313331323133112113313221211111212333   <<    C1111233133313231133133313331333133313231331121133132212111112123333   >>      C1111233133313231133133313331333133313231331121133132212111112123332   >>