C312312111133131212111133133313331322331323223313231333132313331121312323221   >>    C31231211113313121211113313331333132233132322331323133313231333112131232322   <<    C312312111133131212111133133313331322331323223313231333132313331121312323223   >>      C312312111133131212111133133313331322331323223313231333132313331121312323222   >>