Blockly:MATH CONSTANT HELPURL/be-tarask

https://be-x-old.wikipedia.org/wiki/%D0%9C%D0%B0%D1%82%D1%8D%D0%BC%D0%B0%D1%82%D1%8B%D1%87%D0%BD%D0%B0%D1%8F_%D0%BA%D0%B0%D0%BD%D1%81%D1%82%D0%B0%D0%BD%D1%82%D0%B0