#include <stdio.h>

int main()

{   int x,y;printf("输入x:");

    scanf("%d",&x);

    if(x<1)y=x;

    else

    {

        if(x<10)y=2*x-1;

        else y=3*x-11;

    }

    printf("x=%d,y=%d\n",x,y);

    return 0;

}