C312322331333132212111133133313331312111133132313113313231323221311   >>    C31232233133313221211113313331333131211113313231311331323132322131   <<    C312322331333132212111133133313331312111133132313113313231323221313   >>      C312322331333132212111133133313331312111133132313113313231323221312   >>