#include <iostream>
#include <iomanip>
 
using namespace std;
 
void f(double&x1,double&x2,double&x3,double&x4)
{
    x1 = 0.32*x1 - 0.18*x2 + 0.02*x3 + 0.21*x4 + 1.83;
    x2 = 0.16*x1 + 0.12*x2 - 0.14*x3 + 0.27*x4 - 0.65;
    x3 = 0.37*x1 + 0.27*x2 - 0.02*x3 - 0.24*x4 + 2.23;
    x4 = 0.12*x1 + 0.21*x2 - 0.18*x3 + 0.25*x4 - 1.13;
}
 
int main()
{
    const double eps = 0.001;
 
    double x1 = 0, x2 = 0, x3 = 0, x4 = 0, y1 = 1, y2 = 1, y3 = 1, y4 = 1;
 
    for(;abs(x1-y1) > eps || abs(x2-y2) > eps || abs(x3-y3) > eps || abs(x4-y4) > eps;)
    {
        y1 = x1; y2 = x2; y3 = x3; y4 = x4;
        cout << setw(10) << x1 << setw(10) << x2 << setw(10) << x3 << setw(10) << x4 << endl;
        f(x1,x2,x3,x4);
 
    }
 
}

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