import std;

void main () {
    int N, M;
    readln.read(N, M);
    auto S = new string[](N);
    foreach (i; 0 .. N) {
        S[i] = readln.chomp;
    }

    auto T = new char[][](N, M);
    foreach (i; 0 .. N) {
        T[i] = S[i].dup;
    }

    foreach (j; 0 .. M) {
        int cnt = 0;
        foreach (i; 0 .. N) {
            if (T[i][j] == '#') {
                cnt++;
            }
        }

        foreach (i; 0 .. cnt) {
            T[i][j] = '#';
        }
        foreach (i; cnt .. N) {
            T[i][j] = '.';
        }
    }

    foreach (i; 0 .. N) {
        int cnt = 0;
        foreach (j; 0 .. M) {
            if (T[i][j] == '#') {
                cnt++;
            }
        }

        foreach (j; 0 .. cnt) {
            T[i][j] = '#';
        }
        foreach (j; cnt .. M) {
            T[i][j] = '.';
        }
    }

    foreach (i; 0 .. N) {
        writeln(T[i]);
    }
}

void read (T...) (string S, ref T args) {
    import std.conv : to;
    import std.array : split;
    auto buf = S.split;
    foreach (i, ref arg; args) {
        arg = buf[i].to!(typeof(arg));
    }
}