Spiral Pattern

The Spiral Pattern creates a square matrix filled with consecutive numbers in a spiral order. The algorithm starts from the top-left corner and fills the matrix in a clockwise spiral pattern. It uses four pointers (rowStart, rowEnd, colStart, colEnd) to keep track of the boundaries of the unfilled portion of the matrix. In each iteration, it fills the top row, right column, bottom row, and left column of the current boundary, and then shrinks the boundary. The process continues until the entire matrix is filled. Finally, the matrix is converted to a pattern by formatting each number to have two digits and joining the rows with spaces.