UVa 10235

#include<bits/stdc++.h>
using namespace std;

typedef unsigned long long int  ull;
typedef long long int      ll;
typedef vector<int>        vi;
typedef vector<ll>         vll;
typedef vector<vi>         vvi;
typedef pair<int,int >     pii;
typedef vector< pii >      vpii;
typedef set<int>           sti;

#define sc                 scanf
#define pf                 printf
#define sci(n)             scanf("%d",&n)
#define scl(n)             scanf("%lld",&n)
#define scd(n)             scanf("%lf",&n)
#define scs(s)             scanf("%s",s)
#define pfi(n)             printf("%d",n)
#define pfl(n)             printf("%lld",n)
#define pff(n)             cout<<n
#define line               printf("\n")
#define spc                printf(" ")
#define loop(i,x,y)        for(int i=int(x); i<=int(y); i++)
#define rloop(i,y,x)       for(int i=int(y); i>=int(x); i--)
#define cspf(i)            printf("Case %d: ", i)
#define pb                 push_back
#define mp                 make_pair
#define ff                 first
#define ss                 second
#define all(v)             v.begin(),v.end()
#define rall(v)            v.rbegin(),v.rend()
#define read()             freopen("input.txt", "r", stdin)
#define write()            freopen("output.txt", "w", stdout)
/// Constants
#define eps                1e-9
#define inf                (1e6)+9
#define PI                 acos(-1.0)  // 3.1415926535897932
#define MAX                1000009

bool chk[MAX];

void seive()
{
    chk[0]=1;
    chk[1]=1;
    for(int i=2;i<MAX-5;i++){
        if(chk[i])
            continue;
        for(int j=2;i*j<MAX-5;j++){
            chk[i*j]=1;
        }
    }
}

int main()
{
    seive();
    int n;
    while(cin>>n){
        int rev=0,pre;
        pre=n;
        while(n){
            rev=rev*10+n%10;
            n/=10;
        }
        if(!chk[pre] && !chk[rev] && pre!=rev) cout<<pre<<" is emirp."<<endl;
        else if(!chk[pre]) cout<<pre<<" is prime."<<endl;
        else if(chk[pre]) cout<<pre<<" is not prime."<<endl;
    }
    return 0;
}