C312322331333132212111133133313331323133313221211111211331323133312111111213121   >>    C31232233133313221211113313331333132313331322121111121133132313331211111121312   <<    C312322331333132212111133133313331323133313221211111211331323133312111111213123   >>      C312322331333132212111133133313331323133313221211111211331323133312111111213122   >>