import std.algorithm, std.container, std.conv, std.math, std.range, std.typecons, std.stdio, std.string; void readV(T...)(ref T t){auto r=readln.splitter;foreach(ref v;t){v=r.front.to!(typeof(v));r.popFront;}} void main() { int q, k; readV(q, k); auto rb1 = redBlackTree!("a>b", true, long)(), rb2 = redBlackTree!("a