unsigned*p=a,t,x,y=1,z=2,w=3,a[7d6];{cin>>x;(1..t=x^x<<11,x=y,y=z,z=w,*p=w^=w>>19^t^t>>8,p+=w<3d9,1d7);sort(a,p);cout<<a[5d6];}