Master 4051 with 8 4051 Slaves

i using 1 4051 master  8 4051 slaves, found code on internet , trying modify new @ programming. when i'm putting 5v on inputs these random voltage reading?

my results

input 0: 24 v
input 1: 63 v
input 2: 6 v
input 3: 82 v
....
....
input 63: 48 v

code: [select]

//i have multiple wires (64 of these) values want read voltage.
//i using master multiplexer hc4051 connected 8 slave multiplexers
// 74xx4051 address pins :
int m_s0 = 2;
int m_s1 = 3;
int m_s2 = 4;

int s_s0 = 7;
int s_s1 = 6;
int s_s2 = 5;
int z = a0;
int mux64[64] = {0};

void setup() {
      // configure address pins
    pinmode(m_s0, output);
    pinmode(m_s1, output);
    pinmode(m_s2, output);
    pinmode(s_s0, output);
    pinmode(s_s1, output);
    pinmode(s_s2, output);
  serial.begin(9600);   
 
}

void loop() {
   // loop through addresses of master
    (int = 0; < 64; i++) {
       
    digitalwrite(m_s2, high && (i & 0b1000000));
    digitalwrite(m_s1, high && (i & 0b100000));
    digitalwrite(m_s0, high && (i & 0b010000));       
    digitalwrite(s_s2, high && (i & 0b000100));
    digitalwrite(s_s1, high && (i & 0b000010));
    digitalwrite(s_s0, high && (i & 0b000001));
    delay(1);
    mux64[i] = analogread(z);   
   
   
     

    serial.print("input ");
    serial.print(i);
    serial.print(": ");
    serial.print(mux64[i]);
    serial.println(" v ");
    delay(1000);
}

}

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