C111123313331323113313331323133313231333131323132313231333132221   >>    C11112331333132311331333132313331323133313132313231323133313222   <<    C111123313331323113313331323133313231333131323132313231333132223   >>      C111123313331323113313331323133313231333131323132313231333132222   >>