样例：

 代码如下：

#include<stdio.h>

int main()
{
		int in;
		int a,b,c,d;
		scanf("%d",&in);



		a=in/63360;
		b=in%63360/36;
		c=in%63360%36/12;
		d=in%63360%36%12;
			if(a>=1)
				printf("%d mi",a);
			if(b>=1)
				printf(" %d yd",b);
			if(c>=1)
				printf(" %d ft",c);
			if(d>=1)
				printf(" %d in\n",d);
    return 0;
}