{
  "testcases": {
    "sandbox": {
      "action": "gfpoly_factor_sff",
      "arguments": {
        "F": [
          "vL77UwAAAAAAAAAAAAAAAA==",
          "mEHchYAAAAAAAAAAAAAAAA==",
          "9WJa0MAAAAAAAAAAAAAAAA==",
          "akHfwWAAAAAAAAAAAAAAAA==",
          "E12o/QAAAAAAAAAAAAAAAA==",
          "vKJ/FgAAAAAAAAAAAAAAAA==",
          "yctWwAAAAAAAAAAAAAAAAA==",
          "c1BXYAAAAAAAAAAAAAAAAA==",
          "o0AtAAAAAAAAAAAAAAAAAA==",
          "AbP2AAAAAAAAAAAAAAAAAA==",
          "k2YAAAAAAAAAAAAAAAAAAA==",
          "vBYAAAAAAAAAAAAAAAAAAA==",
          "dSAAAAAAAAAAAAAAAAAAAA==",
          "69gAAAAAAAAAAAAAAAAAAA==",
          "VkAAAAAAAAAAAAAAAAAAAA==",
          "a4AAAAAAAAAAAAAAAAAAAA==",
          "gAAAAAAAAAAAAAAAAAAAAA=="
        ]
      }
    }
  }
}