C31321211111333132331211113313331333133313331333133313331323133313231333222121   >>    C3132121111133313233121111331333133313331333133313331333132313331323133322212   <<    C31321211111333132331211113313331333133313331333133313331323133313231333222123   >>      C31321211111333132331211113313331333133313331333133313331323133313231333222122   >>