const input = require('fs').readFileSync('/dev/stdin', 'utf8');
if (input.includes('ｗ') && [...new Set([...input])].length - 2) {
  const len = Math.max(...input.match(/ｗ+/g).map(v => v.length));
  const re = new RegExp(`[^ｗ]+ｗ{${len}}`, 'g');
  console.log(
    input.match(re).map(v => v.replace(/ｗ/g, '')).join('\n')
  );
} else {
  console.log('');
}