[lammps-users] input too long

Hi there,

I'm new to Lammps and I was hoping someone can help me with this.
I'm trying to input a custom lattice consisting of 64 atoms. I input it one line as "basis x y z". However, since there are many atoms, the line crosses over to the next on on the text editor and when I run it, I get a error message saying "Input too long".
Any solutions for this?