import java.util.*; 
import java.lang.*; 
import java.io.*; 
 
/* Name of the class has to be "Main" only if the class is public. */ 
class Ideone 
{ 
public static void main (String[] args) throws java.lang.Exception 
{ 
int i, j, fl; 
System.out.println("Введите разрядность"); 
Scanner in = new Scanner(System.in); 
int x = 2; 
int n = in.nextInt(); 
double m = Math.pow(x, n); 
 
 
int razm= (int) m; 
int m1 = (int) m; 
 
System.out.println("Введите вектор значений функции"); 
int[] vec = new int[razm]; 
int[] pfl = new int[razm]; 
for(i=0; i<m; i++) 
vec[i] = in.nextInt(); 
 
for(j=0; j<n; j++) 
{ for(i=0; i<m1; i++) 
pfl[i]=0; 
fl=0; 
for(i=0; i<m1; i++) 
if(pfl[i]==0) 
{ if(vec[i]!=vec[i+ (int) Math.pow(2,j)]) {fl=1; break;} 
pfl[i+ (int) Math.pow(2,j)]=1; 
} 
if(fl==0) {System.out.println("X"+ (n-j) + " Фиктивная переменая");}}} 
}

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