M=1000, D=500, C=100, L=50, X=10, V=5 and I=1
The seven Roman numerals are: I (1), V (5), X (10), L (50), C (100), D (500), and M (1000). These symbols are used in various combinations to represent different numbers in the Roman numeral system.
here you go.In roman`s numberals its looks like this X-10 and XI-11
CLXXXIX
1736
1607
MCMLXXXXII
40032
It is: 5 = V
2000 = MM
11
50
20 = XX
2101 = MMCI