#include <iostream>
#include <math.h>
#include <complex>
#include <cstring>
using namespace std;


int n,a=0,b=2;
double y,x,step, min=INT_MAX, res;
cout << "How much portions ";
cin >> n;
step =(double)(b-a)/n;
x = a;
for(int i= 0; i<n; i++){
    x+=step;
    y = log10(cosh(x))-tanh(x)+0.5;
    if(min > y){
        min = y;
        res = x;
    }
}
    cout << "The min value is  "<<min<<"   The answer is  "<< res<<endl;