Yet Another Roman Numeral Problem FIXED

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Problem

Given two roman numerals between 1 (I) and 4 (IV), print their sum.

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rejudge feature is enabled

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Sample input:_

II IV
III III
I I
IV I
IV I
IV II
II IV
I III
I I
IV IV
II II
IV II
III I
IV II
I IV
IV IV
III IV
I IV
I I
I I
I I
III I
I III
II IV
II IV

Sample output:

VI
VI
II
V
V
VI
VI
IV
II
VIII
IV
VI
IV
VI
V
VIII
VII
V
II
II
II
IV
IV
VI
VI

Sample input:_

II II
IV I
IV IV
III III
II II
IV II
IV II
II III
II IV
III IV
III IV
III III
IV III
III III
IV I
II I
IV II
II II
III I
I II
I IV
II II
IV II
II III
IV IV

Sample output:

IV
V
VIII
VI
IV
VI
VI
V
VI
VII
VII
VI
VII
VI
V
III
VI
IV
IV
III
V
IV
VI
V
VIII

Sample input:_

II I
III III
II IV
III IV
II II
III II
IV IV
IV IV
I I
II II
III II
I III
III II
I IV
I II
IV III
IV II
I IV
II I
III IV
IV III
I IV
IV I
III III
I III

Sample output:

III
VI
VI
VII
IV
V
VIII
VIII
II
IV
V
IV
V
V
III
VII
VI
V
III
VII
VII
V
V
VI
IV

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