C312321323131323131232313231323133313132322331323221311331323132322112113111   >>    C31232132313132313123231323132313331313232233132322131133132313232211211311   <<    C312321323131323131232313231323133313132322331323221311331323132322112113113   >>      C312321323131323131232313231323133313132322331323221311331323132322112113112   >>