output = [x for x in input().split() if x.startswith('http://') or x.startswith('https://') or x.startswith('ftp://')]
print(output)

b3V0cHV0ID0gW3ggZm9yIHggaW4gaW5wdXQoKS5zcGxpdCgpIGlmIHguc3RhcnRzd2l0aCgnaHR0cDovLycpIG9yIHguc3RhcnRzd2l0aCgnaHR0cHM6Ly8nKSBvciB4LnN0YXJ0c3dpdGgoJ2Z0cDovLycpXQpwcmludChvdXRwdXQp

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

Lorem ipsum dolor sit amet https://w...content-available-to-author-only...m.com/ipsum.php?q=suas, nusquam tincidunt ex per, ius modus integre no, quando utroque placerat qui no. Mea conclusionemque vituperatoribus et, omnes malorum est id, pri omnes atomorum expetenda ex. Elit pertinacia no eos, nonumy comprehensam id mei. Ei eum maiestatis quaerendum https://w...content-available-to-author-only...m.org😀. Pri posse constituam in, sit http://n...content-available-to-author-only...o.uk omnium assentior definitionem ei. Cu duo equidem meliore qualisque.