import std.stdio,
       std.conv,
       std.string,
       std.range,
       std.math,
       std.algorithm;

void main()
{
    auto W = readln.strip.to!long;
    auto D = readln.strip.to!long;

    W.reduce!"a-a/b^^2"(iota(2, D + 1).array.reverse).writeln;
}