//Sorry I know only C++ language #include<iostream> using namespace std; int main(){ <span> char a,b,c,d,a2,b2,c2,d2;</span><span> cin>>a>>b>>c>>d; </span><span> a2=a-48; </span><span> b2=b-48; </span><span> c2=c-48;</span><span> d2=d-48; </span><span> cout<<(a2+b2+c2+d2)%4;</span> return 0;}<span> </span>