#include <stdio.h>
int main(void) {
int i,n,a,b,x,y,flag=0;
for(i=1;i<=n;i++)
{
for(x=a;x<=b;x++)
{
flag=0;
for(y=2;y<=x/2;y++)
{
if(x%y==0)
flag=1;
}
if(flag==1)
{
}
}
}
return 0;
}
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