r7 vs r8
......
88
{{{#!if r =(+a)*(+b)
99
}}}×}}}{{{#!if f == '/'
1010
{{{#!if r =(+a)/(+b)
11
}}}÷}}} @b@ = {{{#!if r=r.toString(), r != null
11
}}}÷}}} @b@ = {{{#!if r=r.toString()
12
}}}{{{#!if r != null
1213
{{{#!if r1 = +(r.substr(18,1))
1314
{{{#!if r1 == 0
1415
0}}}{{{#!if r1 == 1
......