Сделайте очень безотлагательно на с++

include lt;iostreamgt;include lt;cmathgt;include lt;cstdiogt;using namespace std;int n;int main () cin gt;gt;n;cout lt;lt;"The next number for the number " lt;lt; n lt;lt;" is " lt;lt;n+1 lt;lt; '\n';cout lt;lt;"The previous number for the number " lt;lt; n lt;lt;" is " lt;lt;n-1;return 0;