# your code goes here
fr=function(x){
+ x1=x[1]
+ x2=x[2]
+ x3=x[3]
+ -2*log((1-x1)*((1/(1+(133/x2)^x3))-(1/(1+(143/x2)^x3))))-3*log((1-x1)*((1/(1+(176.5/x2)^x3))-(1/(1+(182.5/x2)^x3))))-10*log((1-x1)*((1/(1+(182.5/x2)^x3))-(1/(1+(192.5/x2)^x3))))-11*log((1-x1)*((1/(1+(192.5/x2)^x3))-(1/(1+(200.5/x2)^x3))))-6*log((1-x1)*((1/(1+(200.5/x2)^x3))-(1/(1+(206.5/x2)^x3))))-5*log((1-x1)*((1/(1+(206.5/x2)^x3))-(1/(1+(216.5/x2)^x3))))-2*log((1-x1)*((1/(1+(216.5/x2)^x3))-(1/(1+(224.5/x2)^x3))))-1*log((1-x1)*((1/(1+(266.5/x2)^x3))-(1/(1+(276.5/x2)^x3))))-160*log((1-x1)*((1/(1+(281.5/x2)^x3))))
+ }