C313212111113331323312111133133313331333133313331333133313331323212112321   >>    C31321211111333132331211113313331333133313331333133313331333132321211232   <<    C313212111113331323312111133133313331333133313331333133313331323212112323   >>      C313212111113331323312111133133313331333133313331333133313331323212112322   >>