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val = input("Enter your value: ")

class Solution(object):

def romanToInt(self, s):

"""

:type s: str

:rtype: int

"""

roman = {'I':1,'V':5,'X':10,'L':50,'C':100,'D':500,'M':1000,'IV':4,'IX':9,'XL':40,'XC':90,'CD':400,'CM':900}

i = 0

num = 0

while i < len(s):

if i+1<len(s) and s[i:i+2] in roman:

num+=roman[s[i:i+2]]

i+=2

else:

#print(i)

num+=roman[s[i]]

i+=1

return num

ob1 = Solution()

print(ob1.romanToInt(val))