import java.util.*;
public class Main {
public static void TravelRowWise(Character[][] park, int K, int S, int N, int M) {
boolean flag = true;
for (int i = 0; i < park.length ; i++) {
for (int j = 0; j < park[i].length ; j++) {
if (S < K) {
flag = false;
break;
}
if (park[i][j] == '.') {
// . occurs decrease S by 2
S = S - 2;
} else if (park[i][j] == '*') {
S = S + 5;
} else if (park[i][j] == '#') {
break;
}
// decrease strength from o to n-1 except last col
if (j != N - 1) {
S--;
}
}
}
if (flag) {
System.out.println("Yes");
System.out.println(S);
} else {
System.out.println("No");
System.out.println(S);
}
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int N = sc.nextInt();
int M = sc.nextInt();
int K = sc.nextInt();
int S = sc.nextInt();
Character[][] park = new Character[N][M];
for (int i = 0; i < N; i++) {
for (int j = 0; j < M; j++) {
park[i][j] = sc.next().charAt(0);
}
}
TravelRowWise(park, K, S, N, M);
}
}