#include <iostream.h>
#include <math.h>
void main()
{
    int a=2,b=3,c=7,x=4,y;
    double h=0.31;
    for(x=0;x<=5;x=x+h)
    {
        if (x<2) y=pow(a,b-x)+c;
        if ((x>=2) && (x<=4)) y=pow(b,c-x)+a;
        if (x>4) y=pow(c,a-x)+b;
    }
    cout<<y<<endl;
}