Add appropriate operation symbols or brackets to the left of the equal sign of the following questions to make the result exactly equal to the number 4 = 20 on the right 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6=1996

Add appropriate operation symbols or brackets to the left of the equal sign of the following questions to make the result exactly equal to the number 4 = 20 on the right 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6=1996

(4÷4+4)*4=20
6*6*6*6+(6*6-6/6)*(6-6/6)*(6-6/6-6/6)=1296+35*5*4=1996