#include <stdio.h>
 
#define max 50
 
void sodaonguoc(int x){
    int b;
    int count=0;
    int a[max];
    int i=0;
    while (x!=0)
    {
        int d=x%10;
        x/=10;
        count++;

        a[i]=d;
        i++;
    }
    b = 1;
	for (int i = 0, j = count - 1; i < j; i++, j--) {
		if (a[i] != a[j]) {
			b = 0;
			break;
		}
	}
    if (b==1) {
        printf("day la so dao nguoc");
    }
    else if (b==0) {
        printf("day khong phai so dao nguoc");
    }
}
 
int main(void) {
	sodaonguoc(12223);
	return 0;
}