strings = []

for s in range(1 << 4):
    S = ["N", str(((s >> 0) & 1) + 1), "U", str(((s >> 1) & 1) + 1), "P",
         str(((s >> 2) & 1) + 1), "C", str(((s >> 3) & 1) + 1)]

    T = []

    for i in range(8):
        if i % 2 == 0:
            T.append(S[i])
        else:
            if S[i] == '1':
                continue
            else:
                t = T[:]

                T = t + t

    strings.append(T)

strings.sort()
print(*strings[int(input()) - 1], sep="")