x = [ 
	[ 1 , 2 , 3 ] , 
	[ 4 , 5 , 6 ] , 
	[ 7 , 8 , 9 ] 
    ]
temp = []

for i in ( 0..2 ) do
	temp[ i ] = x[ i ][ 2-i ]
end

for i in ( 0..2 ) do
	x[ i ][ 2-i ] = x[ i ][ i ]
end

for i in ( 0..2 ) do
	x[ i ][ i ] = temp[ i ]
end

for i in ( 0..2 ) do
        for j in ( 0..2 ) do
                printf( "%d " , x[ i ][ j ] )
        end
        printf( "\n" );
end