N = int(input())

t = 0
while (t == 0):
    if N - 720 >= 0:
        print('C',end="")
        N = N-720
    elif N - 360 >= 0:
        print('M',end="")
        N = N-360
    elif N - 180 >= 0:
        print('S',end="")
        N = N-180
    elif N - 30 >= 0:
        print('R',end="")
        N = N-30
    elif N - 6 >= 0:
        print('o',end="")
        N = N-6
    else:
        while(N > 0):
            print('.',end="")
            N = N -1
        t = 1
print("")