C1111133313331323223313331333133313331333131121133133313331312112321   >>    C111113331333132322331333133313331333133313112113313331333131211232   <<    C1111133313331323223313331333133313331333131121133133313331312112323   >>      C1111133313331323223313331333133313331333131121133133313331312112322   >>