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I've already given examples of what is wrong. What do you mean to be happening here:
if(paint==1 &paint=20);if paint is one then make paint 20?
if( paint == 1 )
paint = 20;You may also want to...

You have a ton of problems with your code. Fix up all the stuff I mentioned, and then post your code. Also, your indentation is terrible, and you keep using random pairs of braces where you don't...

&& means "that thing there and this thing here..."
& means bitwise and (the bits in this and that that are both set)
= means assign a value to a thing
== means compare a value to another value
;...