d={
  "p":["r", "r"],
  "s":["k", "s"],
  "k":["k", "p"],
  "r":["p", "s"]
}
input()
m=[int(s) for s in input().split(" ")]
pb="p"
for v, nr in enumerate(m):
  pb=d[pb][m[nr]]
print(pb)