import std.stdio; import std.conv; import std.string; import std.bigint; void main(){ auto a = readln.chomp.to!long; auto b = readln.chomp.to!long; auto c = readln.chomp.to!long; for(long x = 1; x + a < b + c; x++){ for(long y = 1; x + y + a < b + c; y++){ if(solve(a, b, c, x, y)){ writeln("Yes"); return; } } } writeln("No"); } bool solve(long a, long b, long c, long x, long y){ long l = a + x + y; long s = l ^^ 2 + b ^^ 2 - c ^^ 2; long t = l ^^ 2 + c ^^ 2 - b ^^ 2; BigInt left = l * c ^^ 2 + l * y ^^ 2 - y * t; left *= (2 * b ^^ 2 * l - x * s) ^^ 2; left *= c ^^ 2; BigInt right = l * b ^^ 2 + l * x ^^ 2 - x * s; right *= (2 * c ^^ 2 * l - y * t) ^^ 2; right *= b ^^ 2; return left == right; }