Driver code
let A = [ [ 1 , 1 , 1 , 1 ] , [ 2 , 2 , 2 , 2 ] , [ 3 , 3 , 3 , 3 ] , [ 4 , 4 , 4 , 4 ] ] ; let B = [ [ 1 , 1 , 1 , 1 ] , [ 2 , 2 , 2 , 2 ] , [ 3 , 3 , 3 , 3 ] , [ 4 , 4 , 4 , 4 ] ] ; let C = new Array ( N ) ; for ( let k = 0 ; k < N ; k ++ ) C [ k ] = new Array ( N ) ; let i , j ; add ( A , B , C ) ; document . write ( " " ) ; for ( i = 0 ; i < N ; i ++ ) { for ( j = 0 ; j < N ; j ++ ) document . write ( C [ i ] [ j ] + " " ) ; document . write ( " " ) ; }