C111123313331323113313331323133313231333131323132313231333112321   >>    C11112331333132311331333132313331323133313132313231323133311232   <<    C111123313331323113313331323133313231333131323132313231333112323   >>      C111123313331323113313331323133313231333131323132313231333112322   >>