[tex]XXX=30,V=5 \Rightarrow \boxed{35=XXXV} \\ \\ XX=20,VIII=8 \Rightarrow \boxed{28=XXVIII} \\ \\ DCC=700,XXX=30,II=2 \Rightarrow \boxed{732=DCCXXXII} \\ \\ M=1000,CM=900,XC=90 \Rightarrow \boxed{1990=MCMXC} \\ \\ MM=2000,I=1 \Rightarrow \boxed{2001=MMI} \\ \\ M(X)=9000,DCCC=800,LXX=70,VI=6 \Rightarrow \\ \\ \Rightarrow \boxed{9876=M(X)DCCCLXXVI}[/tex]
