#include
#include
int main(){
int n;
do{
printf("Nhap so dao nguoc n = ");
scanf("%d",&n);
if(n<=0)
printf("Ban da nhap sai vui long nhap lai.");
}while(n<=0);
int temp=n;
int sodoixung=0;
while(temp!=0){
sodoixung=sodoixung*10+temp%10;
temp/=10;
}
printf("So dao nguoc la %d",tong);
if(sodoixung==n)
{printf("Day la so doi xung");}
else{
printf("Day khong phai so dx");}
return(0);
}

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