Matrix to generate the Encrypted let
let arr = new Array ( ) ; for ( let i = 0 ; i < a ; i ++ ) { let temp = [ ] ; for ( let j = 0 ; j < b ; j ++ ) { temp . push ( [ ] ) } arr . push ( temp ) } for ( let i = 0 ; i < a ; i ++ ) { for ( let j = 0 ; j < b ; j ++ ) { arr [ i ] [ j ] = " " } } let k = 0 ;