int encrypt()
{
  size_t v0; // rbx
  char s[48]; // [rsp+0h] [rbp-50h]
  __int16 v3; // [rsp+30h] [rbp-20h]

  memset(s, 0, sizeof(s));
  v3 = 0;
  puts("Input your Plaintext to be encrypted");
  gets(s);
  while ( 1 )
  {
    v0 = (unsigned int)x;
    if ( v0 >= strlen(s) )
      break;
    if ( s[x] <= 96 || s[x] > 122 )
    {
      if ( s[x] <= 64 || s[x] > 90 )
      {
        if ( s[x] > 47 && s[x] <= 57 )
          s[x] ^= 0xFu;
      }
      else
      {
        s[x] ^= 0xEu;
      }
    }
    else
    {
      s[x] ^= 0xDu;
    }
    ++x;
  }
  puts("Ciphertext");
  return puts(s);
}

#include <stdio.h>
#include <string.h>
#include <iostream>

using namespace std;
int x = 0;
void begin()
{
      puts("====================================================================");
      puts("1.Encrypt");
      puts("2.Decrypt");
      puts("3.Exit");
      puts("Input your choice!");
}

void encrypt()
{
    char s[48];
    memset(s, 0, sizeof(s));
    puts("Input your Plaintext to be encrypted");
    cin >> s;
    while( strlen(s) > (unsigned int)x )
    {
        if( s[x] <= 96 || s[x] > 122 )
        {
            if( s[x] <= 64 || s[x] > 90 )
            {
                if(s[x] > 47 && s[x] <= 57)
                    s[x] ^= 0xf;
            }
            else
            {
                s[x] ^= 14;
            }
        }
        else
        {
            s[x] ^= 13;
        }
        ++x;
    }
    s[47] = '\0';
    puts("Ciphertext");
}
int main()
{
    int input;
    puts("EEEEEEE                            hh      iii                ");
    puts("EE      mm mm mmmm    aa aa   cccc hh          nn nnn    eee  ");
    puts("EEEEE   mmm  mm  mm  aa aaa cc     hhhhhh  iii nnn  nn ee   e ");
    puts("EE      mmm  mm  mm aa  aaa cc     hh   hh iii nn   nn eeeee  ");
    puts("EEEEEEE mmm  mm  mm  aaa aa  ccccc hh   hh iii nn   nn  eeeee ");
    puts("====================================================================");
    puts("Welcome to this Encryption machine\n");
    begin();
    while(1)
    {
        while(1)
        {
            fflush(0);
            scanf("%d", &input);
            getchar();
            if(input != 2)
                break;
            puts("I think you can do it by yourself");
            begin();
        }
        if(input == 3)
        {
            puts("Bye!");
            return 0;
        }
        if( input != 1  )
            break;
        encrypt();
        begin();
    }
    puts("Something Wrong!");
    return 0;
}