log2 2=1
log5 1=0
3^(2log9 5)=3^(log9 25)=3^(lg25/lg9)=3^(2lg5/2lg3)=5
(3log3 5)^2=5^2=25
3^log3 2=2
log2 2+log5 1-3^(2log9 5)+(3log3 5)^2+3^log3 2=23