int a,b,aux,nrt=0,nrp=0,nri=0;
cin>>a>>b;
if(a>b)
{
aux=a;
a=b;
b=aux;
}
cout<<"Valori naturale: ";
for(int i=a; i<=b; i++) nrt++;
cout<<nrt;
cout<<"\n";
cout<<"Valori naturale pare: ";
for(int i=a; i<=b; i++) if(i%2==0) nrp++;
cout<<nrp;
cout<<"\n";
cout<<"Valori naturale impare: ";
for(int i=a; i<=b; i++) if(i%2==1) nri++;
cout<<nri;
