Foro de elhacker.net

n=input()
s=1000,500,100,50,10,5,1
l='MDCLXVI'
r=''
for i in range(7):
    if n>s[i]:
        r+=n/s[i]*l[i]
        n%=s[i]
print(r)

x=1000,500,100,50,10,5,1
c='MDCLXVI'
def f(n,p):
 return n/x[p]*c[p]+f(n%x[p],p+1)if n else''
print f(input(),0)

n=input()
s=1000,900,500,400,100,90,50,40,10,9,5,4,1
l='M','CM','D','CD','C','XC','L','XL','X','IX','V','IV','I'
r=''
for i in range(13):
    if n>=s[i]:
        r+=n/s[i]*l[i]
        n%=s[i]
print(r)

n=input()
r=''
for x,y in zip([1000,900,500,400,100,90,50,40,10,9,5,4,1],'M CM D CD C XC L XL X IX V IV I'.split()):
    while n>=x:
        r+=y
        n-=x
print r

n=input()
while n<11 and n>0:
    if n==1:
        print 'I'
    if n==2:
        print 'II'
    if n==3:
        print 'III'
    if n==4:
        print 'IV'
    if n==5:
        print 'V'
    if n==6:
        print 'VI'
    if n==7:
        print 'VII'
    if n==8:
        print 'VIII'
    if n==9:
        print 'IX'
    if n==10:
        print 'X'
    n=input()