C1212121231123232233131323223313231333132322133313232233131121131   >>    C121212123112323223313132322331323133313232213331323223313112113   <<    C1212121231123232233131323223313231333132322133313232233131121133   >>      C1212121231123232233131323223313231333132322133313232233131121132   >>