a(b,c)
1
a(b,c)
eq okay
teq okay
a(b,c)
b
c
1(2,3(4,5,6(7)))
3
1(2,3(4,5,6(7)))
eq okay
teq okay
1(2,3(4,5,6(7)))
2
3(4,5,6(7))
4
5
6(7)
7
1(2(3(4(5(6(7))))))
6
1(2(3(4(5(6(7))))))
eq okay
teq okay
1(2(3(4(5(6(7))))))
2(3(4(5(6(7)))))
3(4(5(6(7))))
4(5(6(7)))
5(6(7))
6(7)
7