How to obtain the output response of 2x2 MIMO system with decoupler and PI controller

g11=12.8*exp(-1*s)/(16.7*s+1); g22=(-19.4)*exp(-3*s)/(14.4*s+1); g12=(-18.9)*exp(-3*s)/(21*s+1); g21=6.6*exp(-7*s)/(10.9*s+1);

G = [g11 g12 ; g21 g22]; % G= transfer function of 2*2 MIMO system

d21=(exp(-4*s)*(4.896*s+0.34))/(10.9*s+1); d12=(exp(-2*s)*(24.54*s+1.47))/(21*s+1);

D = [1 d12 ; d21 1]; % D= decoupler

c1=(1.1*s+0.04)/s; c2=(-0.2*s-0.0104)/s; % c1 and c2 are the two controllers

G.InputName = {'u1','u2'}; G.OutputName = {'y'};

D.y = {'u1','u2'}; D.u = {'u11','u22'};

c1.u ='e(1)';

c1.y ='u11';

c2.u ='e(2)';

c2.y ='u22';

Sum = sumblk('e = r - y',2);

CLry = connect(G,D,c1,c2,Sum,'r','y');

y= step (CLry,t);

Two outputs should be obtained. But I can't obtain y1 and y2.

Please help