#include <stdio.h>
int main()
{
    printf("分别输入身高的英尺和英寸，"
    "如输入\"5 7\"表示5英尺7英寸:");

    double foot;
    double inch;

    scanf("%lf %lf", &foot,&inch);
    printf("身高是%f米。\n",
    ((foot+inch/12)*0.3048));

    return 0;
}