#include<stdio.h>
int main(){
char sex,diet;
double fh,mh,h=0;
int PE;
printf("Boys(M) or girl(F):");
scanf("%c",&sex);
printf("\n");
printf("Input father height(cm):");
scanf("%d",&fh);
printf("\n");
printf("Input mother height(cm):");
scanf("%d",&mh);
printf("\n");
printf("Do you like sports(3/2/1):");
scanf("%d",&PE);
printf("\n");
printf("Do you have a good habit of diet(Y/N):");
scanf("%c",&diet);
printf("\n");
if(sex=='M'||sex=='m'){
h=(fh+mh)*0.54;
}
if(sex=='f'||sex=='F'){
h=(fh*0.923+mh)/2;
}
if(diet=='Y'||diet=='y'){
h=h*1.015;
}
if(PE==3){
h=h*1.02;
}
if(PE==2){
h=h*1.01;
}
printf("Your future height will be %0.2lf",h);
return 0;
}