(Explicatie :ga=globulete albe
gr= globulete rosii
gb= globulete albastre
ga
gr= ga+3;
gb= gr+ga-2 = ga+3+ga-2= 2ga+1;
suma : ga+gr+gb= ga+( ga +3)+ (2ga+1)= 4ga+4; )
REZOLVARE:
#include<iostream>
using namespace std;
int main ()
{int ga;
cin>>ga;
cout<<4*ga+4;
}