U

def roman_to_dect(num):
    global roman_nums
    num, ans = "0" + num, 0
    i = len(num) - 1
    while i != 0:
        if i >= 1 and num[i - 1: i + 1] in roman_nums.keys():
            ans += roman_nums[num[i - 1: i + 1]]
            i -= 2
        else:
            ans += roman_nums[num[i]]
            i -= 1
    return str(ans)


roman_nums = {'I': 1, 'IV': 4, 'V': 5, 'IX': 9, 'X': 10, 'XL': 40, 'L': 50, 'XC': 90, 'C': 100, 'CD': 400, 'D': 500,
              'CM': 900, 'M': 1000}
s = input().split()
for i in range(len(s)):
    for j in s[i]:
        if j not in roman_nums.keys():
            break
    else:
        s[i] = roman_to_dect(s[i])
print(" ".join(s))