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- #include <iostream>
- #include <cmath>
- using namespace std;
- int main()
- {
- unsigned long n,i,a,j,prim=1,exista=0;
- cin>>n;
- for(i=1;i<=n;i++)
- {
- cin>>a;
- prim=1;
- j=2;
- while(j<=sqrt(a)&&prim==1)
- {
- if(a%j==0) prim=0;
- j++;
- }
- if(prim)
- {
- exista=1;
- break;
- }
- }
- if(exista) cout<<"DA"; else cout<<"NU";
- return 0;
- }
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