C1212121231123232233131323223313231333132322113313231323331323331313233331   >>    C121212123112323223313132322331323133313232211331323132333132333131323333   <<    C1212121231123232233131323223313231333132322113313231323331323331313233333   >>      C1212121231123232233131323223313231333132322113313231323331323331313233332   >>