chalena yar

#include <stdio.h>


void encrypt(char text[4])
{
int final;
    for(int i=0;i<4;i++)
    {   final = text[i]+10;
        printf("%c",final);
    }
}

void decrypt(char text[4])
{
int final;
    for(int i=0;i<4;i++)
    {   final = text[i]-10;
        printf("%c",final);
    }
}

void main()
{
char text[4];
int cho;
printf("Enter 1 or 2:");
scanf("%d",&cho);
switch(cho)
{
    case 1:
    printf("Enter text of length 4 to encrypt:");
    gets(text);
    encrypt(text);
    break;

    case 2:
    printf("Enter text of length 4 to decrypt:");
    gets(text);
    decrypt(text);
    break;
}


}