import java.io.*;
public class Five {



	public static void check (char [][] piece) throws IOException{

		boolean four = false;
		for (int row = 0; row<4; row++){
			if (piece[row][0]=='#'&& piece[row][1] == '#' && piece[row][2]== '#'
				&& piece[row][3]=='#'){
				four = true;
			}
		}
		for (int col = 0; col<4; col++){
			if (piece[0][col]=='#'&& piece[1][col]=='#'&& piece[2][col]=='#'&&
					piece[3][col]=='#'){
				four = true;
			}
		}
		PrintWriter output = new PrintWriter (new FileWriter ("OUT5.txt"));

		if (four == true){
			output.println("4");
		}
		else 
			output.println("2");

		output.close();
	}


	public static void main(String[] args) throws IOException, Exception {
		String [] file = new String[50];
		BufferedReader input = new BufferedReader (new FileReader("DATA5.txt"));
		PrintWriter output = new PrintWriter (new FileWriter ("OUT5.txt"));

		String [][] newFile = new String[5][10];

		for (int k = 0; k < 5; k ++) {
			
			int x = 0; 
			char[][] piece = new char [4][4];

			while (x<4){
				file[x] = input.readLine();
				x++;
			}
			for (int count = 0 ; count < 6; count ++) {
				String random = input.readLine();
			}
			
			boolean four = false;
			for (int row = 0; row<4; row++){
				if (piece[row][0]=='#'&& piece[row][1] == '#' && piece[row][2]== '#'
					&& piece[row][3]=='#'){
					four = true;
				}
			}
			for (int col = 0; col<4; col++){
				if (piece[0][col]=='#'&& piece[1][col]=='#'&& piece[2][col]=='#'&&
						piece[3][col]=='#'){
					four = true;
				}
			}

			if (four == true){
				output.println("4");
			}
			else 
				output.println("2");
		}
		
		output.close();

		/*	for (int row = 0; row <5; row++){
			for (int col =0; col<10; col++){
				for (int k =0; k<5; k++){
					file[]
			}
		}


		}

		
		for (int k = 0; k<50; k=k+10){
			for (int row = 0; row<4; row++){
				for (int col = 0; col<4; col++){
					piece [row][col]= file [row].charAt(col);
				}
			}
		}
*/
		System.exit(0) ;
	}

}