C1111233133313231133133313231333133313113313113313331331121111331322132211211   >>    C111123313331323113313331323133313331311331311331333133112111133132213221121   <<    C1111233133313231133133313231333133313113313113313331331121111331322132211213   >>      C1111233133313231133133313231333133313113313113313331331121111331322132211212   >>