Next plaindrome program

[adambure21]

I was doing Next Palindrome program. By looking at the problem statement,i have used [color=#4040FF]unsigned long long int[/color] to hold the value of variables in programme.The code successfully run on ideone website as well as on my gcc compiler. I dont understand on SPOJ why it is not running the further test cases and [color=#FF0000]what is wrong in my code?[/color] Please [color=#0000FF]guide[/color] me to improve my code so that it will get accepted on SPOJ. Thanks in advance.

#include<stdio.h>
int isPalindrome(unsigned long long no){
	unsigned long long rev=0,temp=no;
	while(no){
	rev = rev*10 + no%10;
	no = no / 10;	
	}
	if(temp==rev)
		return 1;
	else return 0;
}
int main(){
	unsigned long long int tc,number;
	scanf("%llu",&tc);	
	while(tc--){
		scanf("%llu",&number);
		while(isPalindrome(++number)==0);
			printf("%llu\n",number);
	}
        return 0;
}

[leppyr64]

For a given positive integer K of not more than 1000000 digits

unsigned long long int is not that large.

[sqd]

You code won't be fast enough to be accepted.
Do NOT try to solve it brutally.