#include<stdio.h>
main()
{
    char answer;
    printf("Hi,I love you!\n");
    printf("Do you love me?(Y/N)\n");
    scanf("%c",&answer);
    while(1)
    {
        if(answer=='n'&&answer=='N');
        {
        printf("Do you love me?(Y/N)");
        }
        else if(answer=='y'&&answer=='Y')
        {
            printf("So great! kiss!");
            exit(0);
        }
        else
            printf("Sorry,I don't understand.");
     }
 }