Print the values of a , b , c , d and k , l , m , h
document . write ( " " + a + " " + ( a - c ) + " " + k + " " ) ; document . write ( " " + b + " " + ( a + c ) + " " + h + " " ) ; document . write ( " " + c + " " + ( d - b ) + " " + l + " " ) ; document . write ( " " + d + " " + ( d + b ) + " " + m + " " ) ;