C1111133313331323223313331333133313331321123113313231323132313231311221123131   >>    C111113331333132322331333133313331333132112311331323132313231323131122112313   <<    C1111133313331323223313331333133313331321123113313231323132313231311221123133   >>      C1111133313331323223313331333133313331321123113313231323132313231311221123132   >>