C313331311233133313112331333132313331323132322331323133313232222121   >>    C31333131123313331311233133313231333132313232233132313331323222212   <<    C313331311233133313112331333132313331323132322331323133313232222123   >>      C313331311233133313112331333132313331323132322331323133313232222122   >>