Change the string of the pointer

Change the string of the pointer

Given the character string definition char *a = "I love China!", read in the integer n, and output the character string corresponding to the character pointer a after the assignment of a = a + n.

Enter an integer n, and ensure that 0<=n<13.

Output the character string corresponding to a after the assignment operation in the title description.
Please pay attention to the line ending output.
enter

7

enter

China!

//改变指针的字符串
#include<iostream>
using namespace std;
int main(void)
{
    
    
    int n;
    cin>>n;
    char *a = "I love China!";
    char *p=(a+n);
    while (*p)
    {
    
    
        putchar(*p);	//单字符输出
        p++;
    }
    return 0;
}