#include iostream
using namespace;
void main(){
int a,b,i,n,m,s=0,l=0;
int c[21]={11,13,17,19,23,29,31,37,41,43,47,53,59,61,67.71,73,79,83,89,97}
cout
#include iostream
using namespace;
void main(){
int a,b,i,n,m,s=0,l=0;
int c[21]={11,13,17,19,23,29,31,37,41,43,47,53,59,61,67.71,73,79,83,89,97}
cout