Flex sensor problems

Hi. I'm in the process of making "a gesture vocalizer" project where I use 5 flex sensor as a input to the microcontroller arduino Mega where it will give around 10 output or more.

I managed to make it display on LCD when each flex sensor bend. However, when I want multiple flex sensor to bend, it does not work.

Below is the code that I did:

#include<LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
const int ledPin=13;

#define FLEX_1 A0
#define FLEX_2 A1
#define FLEX_3 A2

const int sMin=950;
const int sMax=820;

void setup()
{
pinMode(FLEX_1,INPUT);
pinMode(FLEX_2,INPUT);
pinMode(FLEX_3,INPUT);
pinMode(ledPin,OUTPUT);
Serial.begin(9600);

void loop()
{
int s1=analogRead(A0);
int s2=analogRead(A1);
int s3=analogRead(A2);

if (s1>s2)

{
int range1=map(s1,sMin,sMax,0,4);
Serial.print(s1);
switch(range1);
     {
       case 0:
       Serial.println("no");
       break;

       case 1:
       lcd init();
       lcd.backlight();
       lcd.setCursor(0,0);
       lcd.print("HELLO");
       delay(3000);
       digitalWrite(13,HIGH);
       delay(500);
       digitalWrite(13,LOW);
       break;

       default: Serial.println("Not found");
}
        delay(200);
}

if (s2>s1)

{
int range2=map(s2,sMin,sMax,0,4);
Serial.print(s2);
switch(range2);
     {
       case 0:
       Serial.println("no");
       break;

       case 1:
       lcd init();
       lcd.backlight();
       lcd.setCursor(0,0);
       lcd.print("HELP ME");
       delay(3000);
       digitalWrite(13,HIGH);
       delay(500);
       digitalWrite(13,LOW);
       break;

       default: Serial.println("Not found");
}
        delay(200);

}

if ((s3>s1)&&(s3>s2))

{
int range3=map(s3,sMin,sMax,0,4);
Serial.print(s3);
switch(range3);
     {
       case 0:
       Serial.println("no");
       break;

       case 1:
       lcd init();
       lcd.backlight();
       lcd.setCursor(0,0);
       lcd.print("MEDICINE");
       delay(3000);
       digitalWrite(13,HIGH);
       delay(500);
       digitalWrite(13,LOW);
       break;

       default: Serial.println("Not found");
}
        delay(200);

}

if (s1&&s2>s3)

{
int range1=map(s1&&s2,sMin,sMax,0,4);
Serial.print(S1&S2);
switch(range4);
     {
       case 0:
       Serial.println("no");
       break;

       case 1:
       lcd init();
       lcd.backlight();
       lcd.setCursor(0,0);
       lcd.print("IM SICK");
       delay(3000);
       digitalWrite(13,HIGH);
       delay(500);
       digitalWrite(13,LOW);
       break;

       default: Serial.println("Not found");
}
        delay(200);
}

}

I know there is wrong with the last one, but i try to figure out for several times but it doesn't work.

First of all, please explain what you mean exactly with "it does not work".

It does not work = nothing happen and no display on the lcd