import std.stdio, std.conv, std.string, std.array, std.range, std.algorithm, std.container; import std.math, std.random, std.bigint, std.datetime, std.format; void main(string[] args){ if(args.length > 1) if(args[1] == "-debug") DEBUG = 1; solve(); } void log()(){ writeln(""); } void log(T, A ...)(T t, lazy A a){ if(DEBUG) write(t, " "), log(a); } bool DEBUG = 0; string rstring(){ static string[] ss; while(!ss.length) ss = readln.chomp.split; string res = ss[0]; ss.popFront; return res; } T rtype(T)(){ return rstring.to!T; } alias rint = rtype!int, rlong = rtype!long, rreal = rtype!real; T[] rtypes(T)(int n){ return n.iota.map!(i => rtype!T()).array; } alias rint = rtypes!int, rlong = rtypes!long, rreal = rtypes!real; T[][] rtypess(T)(int n, int m){ return n.iota.map!(i => rtypes!T(m)).array; } alias rint = rtypess!int, rlong = rtypess!long, rreal = rtypess!real; // ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- // void solve(){ real a = rreal, b = rreal, c = rreal; writefln("%10.10f", a * c / b); }