C1212121231123232233131323223313233313233313223313231133132313333131   >>    C121212123112323223313132322331323331323331322331323113313231333313   <<    C1212121231123232233131323223313233313233313223313231133132313333133   >>      C1212121231123232233131323223313233313233313223313231133132313333132   >>