C语言模拟报数游戏：30个人数到9淘汰，最后留下谁？

#include<stdio.h>

int main(void)
{
    int i = 0;
    int j = 0;
    int k = 0;
    int flag = 0;
    for(i = 1;i <= 30;i++)
    {
        for(j = 1;j <= 9;j++)
        {
            if(i == 30 && j == 9)
            {
                flag = 1;
                break;
            }
            k++;
        }
        if(flag == 1)
            break;
    }
    printf('The number of the last person is %d\n',k);
    return 0;
}