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( dim, As, true ) a,b,c ( dim, ad, As ) integer
a=txtv1.text
b=txtv2.text
( f, c, d, a, h )=a+b
if rb1.checked=( tue, true, te ) then
c=a+b
txtr.text=c
end if
( if, else ) rb2.checked=( te, the end, true ) then
c=a-b
txtr.text=c
end ( if, else, sub )