public void save() {
BufferedWriter sourceFile = null;
try {
String sourceText = sourceArea.getText();
String cleanText = cleanupSource(sourceText);
if (cleanText.length() != sourceText.length()) {
sourceArea.setText(cleanText);
String message =
String.format(
"One or more invalid characters at the end of the source file have been removed.");
JOptionPane.showMessageDialog(this, message, "ROPE", JOptionPane.INFORMATION_MESSAGE);
}
sourceFile = new BufferedWriter(new FileWriter(sourcePath, false));
sourceFile.write(cleanText);
setSourceChanged(false);
setupMenus();
} catch (IOException ex) {
ex.printStackTrace();
} finally {
if (sourceFile != null) {
try {
sourceFile.close();
} catch (IOException ignore) {
}
}
}
}
void pln(String s) {
try {
bw.write(s);
bw.write(System.lineSeparator());
} catch (Exception ex) {
}
}
public void saveAs() {
Vector<RopeFileFilter> filters = new Vector<RopeFileFilter>();
if (fileExt.equals("m") || fileExt.equals("mac")) {
filters.add(new RopeFileFilter(new String[] {".m", ".mac"}, "Macro files (*.m *.mac)"));
filters.add(
new RopeFileFilter(
new String[] {".a", ".asm", ".aut", ".s"}, "Assembly files (*.a *.asm *.aut *.s)"));
} else {
filters.add(
new RopeFileFilter(
new String[] {".a", ".asm", ".aut", ".s"}, "Assembly files (*.a *.asm *.aut *.s)"));
filters.add(new RopeFileFilter(new String[] {".m", ".mac"}, "Macro files (*.m *.mac)"));
}
filters.add(new RopeFileFilter(new String[] {".txt"}, "Text files (*.txt)"));
RopeFileChooser chooser = new RopeFileChooser(selectedPath, null, filters);
chooser.setDialogTitle("Save Source File");
String fileName = String.format("%s.%s", baseName, fileExt);
chooser.setSelectedFile(new File(selectedPath, fileName));
JTextField field = chooser.getTextField();
field.setSelectionStart(0);
field.setSelectionEnd(baseName.length());
File file = chooser.save(ROPE.mainFrame);
if (file != null) {
selectedPath = file.getParent();
BufferedWriter writer = null;
try {
writer = new BufferedWriter(new FileWriter(file));
writer.write(sourceArea.getText());
} catch (IOException ex) {
ex.printStackTrace();
} finally {
try {
if (writer != null) {
writer.close();
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}
/** @param args */
public static void main(String[] args) throws Exception {
File file = new File("input.txt");
if (file.exists()) {
System.setIn(new BufferedInputStream(new FileInputStream("input.txt")));
}
out = System.out;
bw = new BufferedWriter(new PrintWriter(out));
// sc = new Scanner(System.in);
br = new BufferedReader(new InputStreamReader(System.in));
C231 t = new C231();
t.solve();
bw.close();
}
public void solve() throws Exception {
String s = br.readLine();
String[] sp = s.split(" ");
int n = parseInt(sp[0]);
int m = parseInt(sp[1]);
int fl = 0;
int hf = 0;
int zr = 0;
for (int i = 0; i < n; i++) {
s = br.readLine();
sp = s.split(" ");
for (int j = 0; j < sp.length; j++) {
if (sp[j].equals("11")) {
fl++;
} else if (sp[j].equals("00")) {
zr++;
} else {
hf++;
}
}
}
int[][] ans = new int[n][m];
int fla = fl % m;
int row = 0;
int col = 0;
if (fl > 0) {
for (row = 0; row < n; row++) {
for (col = 0; col < m; col++) {
ans[row][col] = 1;
fl--;
if (fl == 0) {
break;
}
}
if (fl == 0) {
break;
}
}
col++;
}
if (col == m) {
row++;
col = 0;
}
if (hf > 0) {
for (int j = m - 1; j >= col; j--) {
ans[row][j] = 2;
hf--;
if (hf == 0) {
break;
}
}
}
boolean flag = true;
for (int i = n - 1; i >= 0; i--) {
if (hf == 0) break;
for (int j = m - 1; j >= 0; j--) {
if (flag) {
ans[i][j] = 3;
} else {
ans[i][j] = 2;
}
hf--;
if (hf == 0) break;
}
flag = !flag;
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if (j != 0) {
bw.write(" ");
}
if (ans[i][j] == 1) {
bw.write("11");
} else if (ans[i][j] == 2) {
bw.write("01");
} else if (ans[i][j] == 3) {
bw.write("10");
} else {
bw.write("00");
}
}
bw.write("\n");
}
}
void pl(String s) {
try {
bw.write(s);
} catch (Exception ex) {
}
}