N = int(input())
ans = []
nC = N // 720
for i in range(nC):
    ans.append('C')
N -= nC * 720

nM = N // 360
for i in range(nM):
    ans.append('M')
N -= nM * 360

nS = N // 180
for i in range(nS):
    ans.append('S')
N -= nS * 180

nR = N // 30
for i in range(nR):
    ans.append('R')
N -= nR * 30

no = N // 6
for i in range(no):
    ans.append('o')
N -= no * 6

n = N
for i in range(n):
    ans.append('.')

print(''.join(ans))