numbers=left, % where to put the line-numbers
numberstyle=\tiny\color{black}, % the style that is used for the line-numbers
stepnumber=1, % the step between two line-numbers. If it's 1, each line
numbers=left, % where to put the line-numbers
numberstyle=\tiny\color{black}, % the style that is used for the line-numbers
stepnumber=1, % the step between two line-numbers. If it's 1, each line