#include #include using namespace std; using namespace atcoder; typedef long long int ll; typedef long double ld; #define FOR(i,l,r) for(ll i=l;i=l;i--) #define RREP(i,n) RFOR(i,0,n) #define ALL(x) x.begin(),x.end() #define P pair #define F first #define S second #define BS(A,x) binary_search(ALL(A),x) #define LB(A,x) (ll)(lower_bound(ALL(A),x)-A.begin()) #define UB(A,x) (ll)(upper_bound(ALL(A),x)-A.begin()) #define COU(A,x) UB(A,x)-LB(A,x) templateusing min_priority_queue=priority_queue,greater>; using mint=modint1000000007; vector

M={P(1,0),P(0,1),P(-1,0),P(0,-1)}; signed main(){ ll N,V,Ox,Oy;cin>>N>>V>>Oy>>Ox; vector>L(N+2,vector(N+2,1e18)),X(N+2,vector(N+2)),Y(N+2,vector(N+2)); REP(i,N)REP(j,N)cin>>L[i+1][j+1];X[1][1]=V;queue

Q;Q.push(P(1,1)); while(Q.size()){ ll x=Q.front().F,y=Q.front().S;Q.pop(); REP(i,4){ ll xx=x+M[i].F,yy=y+M[i].S;bool t=0; if(L[xx][yy]