C1111233133313231133133313331333133313231331121133132212111113222321   >>    C111123313331323113313331333133313331323133112113313221211111322232   <<    C1111233133313231133133313331333133313231331121133132212111113222323   >>      C1111233133313231133133313331333133313231331121133132212111113222322   >>