Ly8gVGhpcyB0ZXN0IGZhaWxzIG9uIFZ4V29ya3MgaW4ga2VybmVsIG1vZGUgYmVjYXVzZSBpdCBkZXBlbmRzIG9uIHRoZQovLyBsaWJyYXJ5IHZlcnNpb24gb2YgIjo6b3BlcmF0b3IgbmV3W10iIGNhbGxpbmcgdGhlICI6Om9wZXJhdG9yIG5ldyIKLy8gZGVmaW5lZCBpbiB0aGlzIG1vZHVsZS4gIFRoaXMgZG9lc24ndCB3b3JrIGJlY2F1c2UgdGhlIGxpYnJhcnkgdmVyc2lvbgovLyBvZiAiOjpvcGVyYXRvciBuZXdbXSIgaXMgYnVpbHQgaW50byB0aGUga2VybmVsIGl0c2VsZjsgbGlicmFyeSByZWxvY2F0aW9ucwovLyBhcmUgcmVzb2x2ZWQgd2hlbiB0aGUga2VybmVsIGlzIGxpbmtlZC4KLy8geyBkZy1kbyBydW4geyB4ZmFpbCB7IHBvd2VycGMtaWJtLWFpeCogfHwgdnh3b3Jrc19rZXJuZWwgfSB9IH0KLy8geyBkZy1vcHRpb25zICItZmxhdF9uYW1lc3BhY2UiIHsgdGFyZ2V0ICotKi1kYXJ3aW5bNjddKiB9IH0KLy8gVGVzdCBfX2N4YV92ZWMgcm91dGluZXMKLy8gQ29weXJpZ2h0IChDKSAyMDAwLCAyMDA1IEZyZWUgU29mdHdhcmUgRm91bmRhdGlvbiwgSW5jLgovLyBDb250cmlidXRlZCBieSBOYXRoYW4gU2lkd2VsbCA3IEFwciAyMDAwIDxuYXRoYW5AbmF0aGFuQGNvZGVzb3VyY2VyeS5jb20+CgojaWYgZGVmaW5lZCAoX19HWFhfQUJJX1ZFUlNJT04pICYmIF9fR1hYX0FCSV9WRVJTSU9OID49IDEwMAojaW5jbHVkZSA8Y3h4YWJpLmg+CiNpbmNsdWRlIDxzdGRpby5oPgojaW5jbHVkZSA8bmV3PgojaW5jbHVkZSA8c3RkbGliLmg+CiNpbmNsdWRlIDxzZXRqbXAuaD4KCnN0YXRpYyBpbnQgY3Rvcl9jb3VudCA9IDA7CnN0YXRpYyBpbnQgZHRvcl9jb3VudCA9IDA7CnN0YXRpYyBib29sIGR0b3JfcmVwZWF0ID0gZmFsc2U7CgovLyBBbGxvY2F0ZSBlbm91Z2ggcGFkZGluZyB0byBob2xkIGFuIGFycmF5IGNvb2tpZS4KI2lmZGVmIF9fQVJNX0VBQklfXwojZGVmaW5lIHBhZGRpbmcgOAojZWxzZQojZGVmaW5lIHBhZGRpbmcgKHNpemVvZiAoc3RkOjpzaXplX3QpKQojZW5kaWYKCi8vIG91ciBwc2V1ZG8gY3RvcnMgYW5kIGR0b3JzCnN0YXRpYyBhYmk6Ol9fY3hhX2NkdG9yX3JldHVybl90eXBlIGN0b3IgKHZvaWQgKngpCnsKICBpZiAoIWN0b3JfY291bnQpCiAgICB0aHJvdyAxOwogIGN0b3JfY291bnQtLTsKI2lmZGVmIF9fQVJNX0VBQklfXwogIHJldHVybiB4OwojZW5kaWYKfQoKc3RhdGljIGFiaTo6X19jeGFfY2R0b3JfcmV0dXJuX3R5cGUgZHRvciAodm9pZCAqeCkKewogIGlmICghZHRvcl9jb3VudCkKICAgIHsKICAgICAgaWYgKCFkdG9yX3JlcGVhdCkKICAgICAgICBkdG9yX2NvdW50LS07CiAgICAgIHRocm93IDE7CiAgICB9CiAgZHRvcl9jb3VudC0tOwojaWZkZWYgX19BUk1fRUFCSV9fCiAgcmV0dXJuIHg7CiNlbmRpZgp9CgovLyB0cmFjayBuZXcgYW5kIGRlbGV0ZQpzdGF0aWMgaW50IGJsb2NrcyA9IDA7CnZvaWQgKm9wZXJhdG9yIG5ld1tdIChzdGQ6OnNpemVfdCBzaXplKSB0aHJvdyAoc3RkOjpiYWRfYWxsb2MpCnsKICB2b2lkICpwdHIgPSBtYWxsb2MgKHNpemUpOwogIAogIGlmICghcHRyKQogICAgdGhyb3cgc3RkOjpiYWRfYWxsb2MgKCk7CiAgYmxvY2tzKys7CiAgcmV0dXJuIHB0cjsKfQoKdm9pZCBvcGVyYXRvciBkZWxldGVbXSAodm9pZCAqcHRyKSB0aHJvdyAoKQp7CiAgaWYgKHB0cikKICAgIHsKICAgICAgZnJlZSAocHRyKTsKICAgICAgYmxvY2tzLS07CiAgICB9Cn0Kc3RhdGljIGptcF9idWYganVtcDsKCi8vIGFsbG9jYXRlIGFuZCBkZWxldGUgYW4gYXJyYXkgd2l0aCBubyBwcm9ibGVtcwp2b2lkIHRlc3QwICgpCnsKICBzdGF0aWMgYm9vbCBzdGFydGVkID0gZmFsc2U7CiAgCiAgaWYgKCFzdGFydGVkKQogICAgewogICAgICBzdGFydGVkID0gdHJ1ZTsKICAgICAgc3RkOjpzZXRfdGVybWluYXRlICh0ZXN0MCk7CiAgICAgIAogICAgICBjdG9yX2NvdW50ID0gZHRvcl9jb3VudCA9IDU7CiAgICAgIGR0b3JfcmVwZWF0ID0gZmFsc2U7CiAgICAgIGJsb2NrcyA9IDA7CiAgICAgIAogICAgICB0cnkKICAgICAgICB7CiAgICAgICAgICB2b2lkICphcnkgPSBhYmk6Ol9fY3hhX3ZlY19uZXcgKDUsIDEsIHBhZGRpbmcsIGN0b3IsIGR0b3IpOwogICAgICAgICAgYWJpOjpfX2N4YV92ZWNfZGVsZXRlIChhcnksIDEsIHBhZGRpbmcsIGR0b3IpOwogICAgICAgICAgaWYgKGN0b3JfY291bnQgfHwgZHRvcl9jb3VudCB8fCBibG9ja3MpCiAgICAgICAgICAgIGxvbmdqbXAgKGp1bXAsIDEpOwogICAgICAgIH0KICAgICAgY2F0Y2ggKC4uLikKICAgICAgICB7CiAgICAgICAgICBsb25nam1wIChqdW1wLCAyKTsKICAgICAgICB9CiAgICB9CiAgZWxzZQogICAgewogICAgICBsb25nam1wIChqdW1wLCAzKTsKICAgIH0KICByZXR1cm47Cn0KCi8vIGFsbG9jYXRlIGFuZCBkZWxldGUgYW4gYXJyYXkgd2l0aCBleGNlcHRpb24gb24gY3Rvcgp2b2lkIHRlc3QxICgpCnsKICBzdGF0aWMgYm9vbCBzdGFydGVkID0gZmFsc2U7CiAgCiAgaWYgKCFzdGFydGVkKQogICAgewogICAgICBzdGFydGVkID0gdHJ1ZTsKICAgICAgc3RkOjpzZXRfdGVybWluYXRlICh0ZXN0MSk7CiAgICAgIAogICAgICBjdG9yX2NvdW50ID0gZHRvcl9jb3VudCA9IDU7CiAgICAgIGR0b3JfcmVwZWF0ID0gZmFsc2U7CiAgICAgIGJsb2NrcyA9IDA7CiAgICAgIAogICAgICBjdG9yX2NvdW50ID0gNDsKICAgICAgdHJ5CiAgICAgICAgewogICAgICAgICAgdm9pZCAqYXJ5ID0gYWJpOjpfX2N4YV92ZWNfbmV3ICg1LCAxLCBwYWRkaW5nLCBjdG9yLCBkdG9yKTsKICAgICAgICAgIGxvbmdqbXAgKGp1bXAsIDEpOwogICAgICAgIH0KICAgICAgY2F0Y2ggKC4uLikKICAgICAgICB7CiAgICAgICAgICAvLyB3ZSBleHBlY3QgdG8gZ2V0IGhlcmUKICAgICAgICAgIGlmIChjdG9yX2NvdW50IHx8IGR0b3JfY291bnQgIT0gMSB8fCBibG9ja3MpCiAgICAgICAgICAgIGxvbmdqbXAgKGp1bXAsIDIpOwogICAgICAgIH0KICAgIH0KICBlbHNlCiAgICB7CiAgICAgIGxvbmdqbXAgKGp1bXAsIDMpOwogICAgfQogIHJldHVybjsKfQoKLy8gYWxsb2NhdGUgYW5kIGRlbGV0ZSBhbiBhcnJheSB3aXRoIGV4Y2VwdGlvbiBvbiBkdG9yCnZvaWQgdGVzdDIgKCkKewogIHN0YXRpYyBib29sIHN0YXJ0ZWQgPSBmYWxzZTsKICAKICBpZiAoIXN0YXJ0ZWQpCiAgICB7CiAgICAgIHN0YXJ0ZWQgPSB0cnVlOwogICAgICBzdGQ6OnNldF90ZXJtaW5hdGUgKHRlc3QyKTsKICAgICAgY3Rvcl9jb3VudCA9IGR0b3JfY291bnQgPSA1OwogICAgICBkdG9yX3JlcGVhdCA9IGZhbHNlOwogICAgICBibG9ja3MgPSAwOwogICAgICAKICAgICAgZHRvcl9jb3VudCA9IDM7CiAgICAgIHRyeQogICAgICAgIHsKICAgICAgICAgIHZvaWQgKmFyeSA9IGFiaTo6X19jeGFfdmVjX25ldyAoNSwgMSwgcGFkZGluZywgY3RvciwgZHRvcik7CiAgICAgICAgICBhYmk6Ol9fY3hhX3ZlY19kZWxldGUgKGFyeSwgMSwgcGFkZGluZywgZHRvcik7CiAgICAgICAgICBsb25nam1wIChqdW1wLCAxKTsKICAgICAgICB9CiAgICAgIGNhdGNoICguLi4pCiAgICAgICAgewogICAgICAgICAgLy8gd2UgZXhwZWN0IHRvIGdldCBoZXJlCiAgICAgICAgICBpZiAoY3Rvcl9jb3VudCB8fCBkdG9yX2NvdW50ICE9IC0ydSB8fCBibG9ja3MpCiAgICAgICAgICAgIGxvbmdqbXAgKGp1bXAsIDIpOwogICAgICAgIH0KICAgIH0KICBlbHNlCiAgICB7CiAgICAgIGxvbmdqbXAgKGp1bXAsIDMpOwogICAgfQogIHJldHVybjsKfQoKLy8gYWxsb2NhdGUgYW4gYXJyYXkgd2l0aCBk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