C1212121231123232233131323223313231333132322133313233313222333131   >>    C121212123112323223313132322331323133313232213331323331322233313   <<    C1212121231123232233131323223313231333132322133313233313222333133   >>      C1212121231123232233131323223313231333132322133313233313222333132   >>