#include <stdio.h>
int main(void)
{
char str[30] = {0};
char ch;
int i = 0,j = 0;
int m;
//获取键盘输入的字符串
while((ch = getchar()) != '\n')
{
str[i] = ch;
i++;
}
scanf("%d",&m);
for(j = m-1;j < i;j++)
printf("%c",str[j]);
return 0;
}

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