How to row reduce 4x4 matrix in wolfram|Alpha?

Im trying to row reduce a 4x4 matrix but wolfram alpha keeps saying input too long.
When i try doing it using data input i still get errors.
Can somebody please tell me the syntax for matrix computations in wolfram alpha using the data input function?

There is no set syntax for Wolfram|Alpha. To see examples of how to write a matrix, see the Wolfram|Alpha example pages:

https://www.wolframalpha.com/examples/Matrices.html

For example, you can ask for the determinant of a matrix with:

"determinant of {{3,0,0,4},{2,1,0,1},{5,3,4,0},{6,6,7,2}}"

If you want to use a set syntax and work with larger matrices, I suggest using Mathematica online. Wolfram Mathematica Online: Bring Mathematica to Life in the Cloud