What is the version of the following sentence with correct punctuation?

It shows that world leaders believe that education is of great importance not just for the individual world citizen but for the international community as such if we are to achieve a more positive and more sustainable development leading to a better societal development
It shows that world leaders believe that education is of great importance not just for the individual world citizen but for the international community as such if we are to achieve a more positive and more sustainable development leading to a better societal development.