C313331311233133313112331333132313331323132322331333133313122321   >>    C31333131123313331311233133313231333132313232233133313331312232   <<    C313331311233133313112331333132313331323132322331333133313122323   >>      C313331311233133313112331333132313331323132322331333133313122322   >>