from __future__ import print_function

mas = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
rimc = [1, 4, 5, 9, 10, 40, 50, 90, 100, 400, 500, 900, 1000]
rims = ['I', 'IV', 'V', 'IX', 'X', 'XL', 'L', 'XC', 'C', 'CD', 'D', 'CM', 'M']
def torim(x):
    sans = ""
    cur = len(rimc) - 1
    while(x):
        while (x >= rimc[cur]):
            sans += rims[cur]
            x -= rimc[cur]
        cur -= 1
    return sans
def out(day, month, year):
    #print(day, month, year)
    #print(vek, quart)
    print(torim(day), end = '.')
    print(torim(month), end = '.')
    print(torim(year))
    exit(0)
n = input()
day, month, year = 0, 0, 0

dayinsqvek = (24 * 366 + 76 * 365) * 4 + 1
dayinvek = (24 * 366 + 76 * 365)
dayinquart = (3 * 365 + 366)

sqvek = n // dayinsqvek
year += sqvek * 400
if (n % dayinsqvek == 0):
    out(31, 13, year)
n -= sqvek * dayinsqvek

vek = n // dayinvek
year += vek * 100
if (n % dayinvek == 0):
    out(31, 12, year)
n -= vek * dayinvek

quart = n // dayinquart
year += quart * 4
if (n % dayinquart == 0):
    out(31, 12, year)
n -= quart * dayinquart

year += n // 365
if (n % 365 == 0):
    out(31, 12, year)
n %= 365
year += 1
if (year % 4 == 0 and year % 100 != 0 or year % 400 == 0):
    mas[1] += 1
#print(n)
for i in range(len(mas)):
    #print(i, n)
    if (n <= mas[i]):
        out(n, i + 1, year)
    else:
        n -= mas[i]