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Copyright (C) 1997-2010, Sota & cooperators.
Copyright (C) 2011-2018, FFFTP Project (Hiromichi Matsushima, Suguru Kawamoto, IWAMOTO Kouichi, vitamin0x, unarist, Asami, fortran90, tomo1192, Yuji Tanaka, Moriguchi Hirokazu, Fu-sen).
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