60 lines
902 B
C++
60 lines
902 B
C++
#include<stdio.h>
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#include<string.h>
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int s[100];
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int main()
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{
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int a,b;
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int k;
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int n;
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int j,m,i;
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int z;
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scanf("%d%d",&a,&b);
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for(j=a;j<=b;j++)
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{
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k=0;
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z=0;
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for(i=2;i<j;i++)
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{
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if(j%i==0)
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break;
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}
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if(i==j)
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z=1;
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if(z==1)
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{
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m=j;
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n=1;
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k=0;
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memset(s,0,sizeof(s));
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while(m!=0)
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{
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s[n]=m%10;
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m/=10;
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n++;
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}
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for(i=1;i<n;i++)
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{
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if(s[i]!=s[n-i])
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break;
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}
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if(i==n)
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{
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k=1;
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}
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else
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{
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k=0;
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}
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}
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if (k == 1)
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printf("%d\n",j);
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}
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return 0;
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}
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