#include <stdio.h>
task main()
{
use ultrasonicsensor();
if(distance>=20&&distance<=30)
sound("do")
else if(distance>=10&&distance<=20)
sound("re")
else if(distance>=0&&distance<=10)
sound("mi")
else
sound("nothing")
} // 2번
task main()
{
int count=0;
go_front();
use lightsensor();
do{
if(light==255)
{
sound("beep")
go_back();
turn_left(90);
}
count++;
} while(count==5);
} //1번