C22121333132313311211113313331333133313331123211113313231333132313211   >>    C2212133313231331121111331333133313331333112321111331323133313231321   <<    C22121333132313311211113313331333133313331123211113313231333132313213   >>      C22121333132313311211113313331333133313331123211113313231333132313212   >>