N = int(input())
P = list(map(int, input().split()))
ans = []
while True:
    z = P.index(0)
    t = None
    for i in range(N - 1):
        if i == z or i + 1 == z:
            continue
        if P[i] > P[i + 1]:
            t = i
            break
    if t is None:
        if z == 0:
            break
        else:
            ans.append("R")
            P = P[1:] + [P[0]]
    else:
        if t == 0:
            ans.append("S")
            P[0], P[1] = P[1], P[0]
        else:
            ans.append("R")
            P = P[1:] + [P[0]]
print("".join(ans))