C313212111133131211331333133313331333133313231323133313331333132313221321   >>    C31321211113313121133133313331333133313331323132313331333133313231322132   <<    C313212111133131211331333133313331333133313231323133313331333132313221323   >>      C313212111133131211331333133313331333133313231323133313331333132313221322   >>