#!/usr/bin/env python
#coding:UTF-8

S1,T = map(str,raw_input().split())

if S1 == "I":
     S1x = 1
elif S1 == "II":
     S1x = 2
elif S1 == "III":
     S1x = 3
elif S1 == "IIII":
     S1x = 4
elif S1 == "V":
     S1x = 5
elif S1 == "VI":
     S1x = 6
elif S1 == "VII":
     S1x = 7
elif S1 == "VIII":
     S1x = 8
elif S1 == "VIIII":
     S1x = 9
elif S1 == "X":
     S1x = 10
elif S1 == "XI":
     S1x = 11
elif S1 == "XII":
     S1x = 12

S1y = S1x + int(T)
S2 = math.fabs(S1y)

print S2