N = int(input())
P = list(map(int,input().split()))
fi = 0
ans = ""
for i in range(N):
  print(i,fi)
  if P[i] == i:continue
  if P[fi] != i :
    while P[fi] != i:
      ans += "R"
      fi += 1
      fi %= N
  if P[fi] == i:
	  if(fi == i):
		  continue
	  else:
	    cnt = 0
	    while fi != i:
	      cnt += 1
	      P[fi],P[(fi+1)%N] = P[(fi+1)%N],P[fi]
	      fi += 1
	      fi %= N
	    fi -= 1
	    fi %= N
	    for i in range(cnt-1):
	      ans +=  "SR"
	    ans += "S"
while fi != 0:
  ans += "R"
  fi += 1
  fi %= N
print(ans)