#include using namespace std; using Int = long long; //INSERT ABOVE HERE signed main(){ auto expand= [&](vector s,Int k){ Int h=s.size(),w=s[0].size(); vector res(h*k,string(w*k,'#')); for(Int i=0;i s){ Int h=s.size(),w=s[0].size(); vector res(w,string(h,'#')); for(Int i=0;i>r>>k>>h>>w; vector s(h); for(Int i=0;i>s[i]; s=expand(s,k); for(Int i=0;i