C3132121111331312113313331333133313331333132313331333133313231333132322131   >>    C313212111133131211331333133313331333133313231333133313331323133313232213   <<    C3132121111331312113313331333133313331333132313331333133313231333132322133   >>      C3132121111331312113313331333133313331333132313331333133313231333132322132   >>