#include using namespace std; using ll =long long; #define all(v) v.begin(),v.end() #define rep(i,a,b) for(int i=a;i=b;i--) ll INF=2e15; struct edge {ll to,cap,rev;}; ll V; vector> G; vector level; vector iter; void add_edge( ll from,ll to,ll cap){ G[from].push_back({to,cap,G[to].size()}); G[to].push_back({from,0,G[from].size()-1}); } void bfs(ll s) { level=vector (V,-1); queue que; level[s]=0; que.push(s); while(!que.empty()) { ll v=que.front(); que.pop(); for(ll i=0;i0&&level[e.to]<0) { level[e.to]=level[v]+1; que.push(e.to); } } } } ll dfs(ll v,ll t,ll f) { if(v==t) return f; for(ll &i=iter[v];i0&&level[v]0) { e.cap-=d; G[e.to][e.rev].cap+=d; return d; } } } return 0; } ll max_flow(ll s,ll t) { ll flow=0; for(;;) { bfs(s); if(level[t]<0) return flow; iter=vector (V,0); ll f; while((f=dfs(s,t,INF))>0) { flow+=f; } } } vector note; void solve(ll i) { if(note[i]) return ; note[i]=true; for(auto x:G[i]) { if(x.cap>0) solve(x.to); } } int main() { ll N,M,K,P; cin>>N>>M>>K>>P; vector E(N); ll ans=0; for(ll i=0;i>E[i]; ans+=E[i]; } vector F(M); for(ll i=0;i>F[i]; ans+=F[i]; } vector v(K); for(ll i=0;i>v[i]; V=N+M+K+2; G=vector> (V,vector(0)); for(ll i=0;i>L; for(ll j=0;j>A; add_edge(i+1,N+M+A,INF); } } for(ll i=0;i>I>>J; add_edge(I,N+J,INF); } ll t=max_flow(0,N+M+K+1); cout< (N+M+K+2,false); solve(0); vector> memo(0); for(ll i=N+M+1;i<=N+M+K;i++) { if(note[i]) { memo.push_back(make_pair("Preparation",i-N-M)); } } for(ll i=N+1;i<=N+M;i++) { if(!note[i]) { memo.push_back(make_pair("Action",i-N)); } } for(ll i=1;i<=N;i++) { if(note[i]) { memo.push_back(make_pair("Goal",i)); } } cout<