S1,T = map(str,input().split())
d = {"I":1,"II":2,"III":3,"IIII":4,"V":5,"VI":6,"VII":7,"VIII":8,"IX":9,"X":10,"XI":11,"XII":0}
for key,value in d.items():
    if value == d[S1] + int(T) % 12:
        print(key)
        break