import std.stdio : writef, readf, readln, writeln, writefln;
import std.array : array, split;
import std.algorithm : sort, each;

// import std.algorithm : maxElement, minElement;
import std.conv : to;
import std.range : iota, tee;
import std.algorithm.comparison : equal, max, min;
import std.container.rbtree : RBT = RedBlackTree;
import std.string : strip;
import core.memory : GC;
import std.typecons : tuple;

alias Tree = RBT!int;

void main()
{
    GC.disable();

    uint A, B, T;
    readf(" %s %s %s", A, B, T);

    writeln(T / A * B);

}
