C313331311233133313112331333132313331323132322331333132223221231   >>    C31333131123313331311233133313231333132313232233133313222322123   <<    C313331311233133313112331333132313331323132322331333132223221233   >>      C313331311233133313112331333132313331323132322331333132223221232   >>