━┳[x + n]━━━━━┳[F7]━━━━━━━┳[x + n]━━━━━┳[F7]━━━━━━┳[x + n]━━━━┳[F7]━━━━━━┳[x + n]━━━━┳[F7]━━━━━━┳[x + n]━━━┳[F7]━━━━━┳[x + n]━━━┳[F7]━━━━┳[x + n]━━┳[F7]━━━━┳[x + n]━[F7]
┣[n + n]━ 1182024┗[not F7]━ 591012 ┣[n + n]━ 162478 ┗[not F7]━ 81239┣[n + n]━ 22334┗[not F7]━ 11167┣[n + n]━ 3070 ┗[not F7]━ 1535 ┣[n + n]━ 422┗[not F7]━211 ┣[n + n]━ 58 ┗[not F7]━29┣[n + n]━ 8┗[not F7]━ 4┣[n + n]━[F7]
┣[n + ']━ 1182024 ┣[n + ']━ 162478 ┣[n + ']━ 22334 ┣[n + ']━ 3070 ┣[n + ']━ 422 ┣[n + ']━ 58 ┣[n + ']━ 8 ┣[n + ']━[F7]
┗[n]━ 753490 ┗[n]━ 103573 ┗[n]━ 14237 ┗[n]━ 1957 ┗[n]━ 269 ┗[n]━ 37 ┗[n]━ 5 ┗[n]━[F7]
━┳[x + n]━━━━━┳[F7]━━━━━┳[x + n]━ a
┣[n + n]━ 2(3a+b)┗[not F7]━3a+b┣[n + n]━ a
┣[n + ']━ 2(3a+b) ┣[n + ']━ a
┗[n]━ 4a+b ┗[n]━ b
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