Driver program
if __name__ == ' _ _ main _ _ ' : NEW_LINE INDENT m , n = 4 , 4 NEW_LINE a = [ [ 0 for j in range ( m ) ] for i in range ( n ) ] NEW_LINE spiralFill ( m , n , a ) NEW_LINE for i in range ( m ) : NEW_LINE INDENT for j in range ( n ) : NEW_LINE INDENT print ( a [ i ] [ j ] , end = ' ▁ ' ) NEW_LINE DEDENT print ( ' ' ) NEW_LINE DEDENT DEDENT