use evalfis with 2 input

Hello, I have two input in my FIS. and in m-file i want send two number to FIS from m-file with evalfis. What i do? The under code with one input number for FIS with one input .

clear all;
close all;
clc
I=imread('cameraman.tif');
figure
subplot(2,2,1);
imshow(I);
title('Original');
subplot(2,2,2);
imhist(I);
title('Original Histogram');
I=double(I);
fis=readfis('FIS5');
[m , n]=size(I);
for  i=1:m
     for  j=1:n
         I(i,j)=evalfis(I(i,j),fis);
     end
end
subplot(2,2,3);
imshow(uint8(I));
title('After');
subplot(2,2,4);
imhist(I.*255);
title('After Histogram');

(i have the under FIS and send two number for FIS system with two input)