C313331311233133313112331333132313331323132322331323133313233121   >>    C31333131123313331311233133313231333132313232233132313331323312   <<    C313331311233133313112331333132313331323132322331323133313233123   >>      C313331311233133313112331333132313331323132322331323133313233122   >>