C111123313331323113313331333133313231333132231211331323133313113313231231   >>    C11112331333132311331333133313331323133313223121133132313331311331323123   <<    C111123313331323113313331333133313231333132231211331323133313113313231233   >>      C111123313331323113313331333133313231333132231211331323133313113313231232   >>