N = int(input())
ans = []
while N > 0:
    if N >= 720:
        ans.append('C')
        N -= 720
    elif N >= 360:
        ans.append('M')
        N -= 360
    elif N >= 180:
        ans.append('S')
        N -= 180
    elif N >= 30:
        ans.append('R')
        N -= 30
    elif N >= 6:
        ans.append('o')
        N -= 6
    else:
        ans.append('.')
        N -= 1
print(''.join(ans))