#include <stdio.h>

float weight,height,bmi;
int main()
{
    printf(">Kind sir, could you please insert your weight and height, please?\n>Insert weight:\n");
    scanf("%f",&weight);
    printf(">Insert height(1.X meters)\n");
    scanf("%f",&height);
    bmi=weight/(height*height);
    if(weight<0 || height<=0)
    {
        printf("\n>Invalid user input\n\n");
    }
    else if(bmi==0)
    {
        printf("\n>Your BMI is...%f\n>Yeah sure pal\n\n",bmi);
    }
    else if(bmi<=20)
    {
        printf("\n>Underweight\n>BMI=%f\n\n",bmi);
    }
    else if(20<bmi && bmi<=25)
    {
        printf("\n>Normal\n>BMI=%f\n\n",bmi);
    }
    else if(25<bmi && bmi<=30)
    {
        printf("\n>Overweight\n>BMI=%f\n\n",bmi);
    }
    else
    {
        printf("\n>Obese\n>BMI=%f\n\n",bmi);
    }

    return 0;

}