def value(R):
	total = 0
	for i in range(len(R)):
		d = R[i]
		if d == 'I':
			if 'V' in R[i:] or 'X' in R[i:]:
				total -= 1
			else:
				total += 1
		elif d == 'V':
			total += 5
		elif d == 'X':
			if 'L' in R[i:] or 'C' in R[i:]:
				total -= 10
			else:
				total += 10
		elif d == 'L':
			total += 50
		elif d == 'C':
			if 'D' in R[i:] or 'M' in R[i:]:
				total -= 100
			else:
				total += 100
		elif d == 'D':
			total += 500
		elif d == 'M':
			total += 1000
	return total

def Roman(n):
	thousand = n%10000 - n%1000
	hundred = n%1000 - n%100
	ten = n%100 - n%10
	one = n%10
	return Rthousand(thousand) + Rhundred(hundred) + Rten(ten) + Rone(one)

def Rthousand(n):
	if n == 4000:
		return 'MMMM'
	if n == 3000:
		return 'MMM'
	if n == 2000:
		return 'MM'
	if n == 1000:
		return 'M'
	if n == 0:
		return ''

def Rhundred(n):
	if n == 900:
		return 'CM'
	if n == 800:
		return 'DCCC'
	if n == 700:
		return 'DCC'
	if n == 600:
		return 'DC'
	if n == 500:
		return 'D'
	if n == 400:
		return 'CD'
	if n == 300:
		return 'CCC'
	if n == 200:
		return 'CC'
	if n == 100:
		return 'C'
	if n == 0:
		return ''

def Rten(n):
	if n == 90:
		return 'XC'
	if n == 80:
		return 'LXXX'
	if n == 70:
		return 'LXX'
	if n == 60:
		return 'LX'
	if n == 50:
		return 'L'
	if n == 40:
		return 'XL'
	if n == 30:
		return 'XXX'
	if n == 20:
		return 'XX'
	if n == 10:
		return 'X'
	if n == 0:
		return ''

def Rone(n):
	if n == 9:
		return 'IX'
	if n == 8:
		return 'VIII'
	if n == 7:
		return 'VII'
	if n == 6:
		return 'VI'
	if n == 5:
		return 'V'
	if n == 4:
		return 'IV'
	if n == 3:
		return 'III'
	if n == 2:
		return 'II'
	if n == 1:
		return 'I'
	if n == 0:
		return ''


count = 0
for R in LIST:
	count += len(R) - len(Roman(value(R)))

print count