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  1. #include <iostream>
  2. using namespace std;
  3. int main()
  4. {int n,i,a;
  5. cin>>n;
  6. for(i=1;i<=n;i++)
  7. cout<<i<<" ";
  8. cout<<endl;
  9. a=n;
  10. for(i=1;i<=a;a--)
  11. cout<<a<<" ";
  12. return 0;
  13. }
  14.  
Success #stdin #stdout 0.01s 5280KB
stdin
5
1 2 0 5 -1

stdout
1 2 3 4 5 
5 4 3 2 1