import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int H = scan.nextInt();
		int W = scan.nextInt();
		int[]r = new int[3];
		int[]c = new int[3];
		int idx = 0;
		char [][]s = new char[H][W];
		for(int i = 0; i < H; i++) {
			for(int j = 0; j < W; j++) {
				s[i][j] = '-';
			}
		}
		for(int i = 0; i < H; i++) {
			String t = scan.next();
			for(int j = 0; j < W; j++) {
				char ch = t.charAt(j);
				if(ch == '*') {
					r[idx] = i;
					c[idx] = j;
					s[i][j] = '+';
					idx++;
				}
			}
		}
		loop: for(int i = 0; i < H; i++) {
			for(int j = 0; j < W; j++) {
				boolean flag = true;
				for(int k = 0; k < 2; k++) {
					if(r[k] == i && c[j] == i) {
						flag = false;
						continue;
					}
				}
				if(flag) {
					r[2] = i;
					c[2] = j;
					break loop;
				}
			}
		}
		s[r[2]][c[2]] = '*';
		for(int i = 0; i < H; i++) {
			for(int j = 0; j < W; j++) {
				System.out.print(s[i][j]);
			}
			System.out.println();
		}
	}
}