C111112111133131121133133313331323133313221131211331323133313231333133313221   >>    C11111211113313112113313331333132313331322113121133132313331323133313331322   <<    C111112111133131121133133313331323133313221131211331323133313231333133313223   >>      C111112111133131121133133313331323133313221131211331323133313231333133313222   >>