#include<stdio.h>
int main()
{
int i,j,a[20],x=1;
for (i=0;i<20;i++)
{
printf("Enter a number between 10 & 100:");
scanf("%d",& a);
while (a<10 || a>100)
{
printf("\nEnter a number again (10-100):");
scanf("%d",& a);
}
for (j=0;j<i;j++)
{
if (a[j]!=a)
x=1;
else
{
x=2;
break;
}
}
if(x==1)
printf("%d\n",a);
}
return 0;
}