C1111233131211111211113313331323133313231333133322133313231322311   >>    C111123313121111121111331333132313331323133313332213331323132231   <<    C1111233131211111211113313331323133313231333133322133313231322313   >>      C1111233131211111211113313331323133313231333133322133313231322312   >>