入力 現行 サンドボックス
1 I I
2 II II
3 III III
4 IV IV
5 V V
6 VI VI
7 VII VII
8 VIII VIII
9 IX IX
10 X X
11 XI XI
12 XII XII
13 XIII XIII
14 XIV XIV
15 XV XV
16 XVI XVI
17 XVII XVII
18 XVIII XVIII
19 XIX XIX
20 XX XX
31 XXXI XXXI
32 XXXII XXXII
33 XXXIII XXXIII
34 XXXIV XXXIV
35 XXXV XXXV
36 XXXVI XXXVI
37 XXXVII XXXVII
38 XXXVIII XXXVIII
39 XXXIX XXXIX
40 XL XL
41 XLI XLI
42 XLII XLII
43 XLIII XLIII
44 XLIV XLIV
45 XLV XLV
46 XLVI XLVI
47 XLVII XLVII
48 XLVIII XLVIII
49 XLIX XLIX
50 L L
90 XC XC
91 XCI XCI
92 XCII XCII
93 XCIII XCIII
94 XCIV XCIV
95 XCV XCV
96 XCVI XCVI
97 XCVII XCVII
98 XCVIII XCVIII
99 XCIX XCIX
100 C C
101 CI CI
102 CII CII
103 CIII CIII
104 CIV CIV
105 CV CV
106 CVI CVI
107 CVII CVII
108 CVIII CVIII
109 CIX CIX
1234 MCCXXXIV MCCXXXIV
4999 IVCMXCIX IVCMXCIX
5000 V V
5001 VI VI
49999 XLIXCMXCIX XLIXCMXCIX
50000 L L
50001 LI LI
69105 LXIXCV LXIXCV
5000000 N/A N/A