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#include <iostream>
#include <cstring>
#include <cstdio>

#define XOR_KEY 0x13
#define MAGIC_NUM 42
#define BUF_SIZE 256

using namespace std;

typedef unsigned char u8;
typedef unsigned int u32;

u8 magic_table[256];
u32 seed = 12345;

u32 lcg() {
    seed = seed * 1103515245 + 12345;
    return seed;
}

void init_table() {
    for (int i = 0; i < 256; i++) {
        magic_table[i] = (u8)(i ^ XOR_KEY ^ ((i * MAGIC_NUM) & 0xFF));
    }
}

u8 obfuscate(u8 c, int idx) {
    return magic_table[(c + idx * MAGIC_NUM) & 0xFF];
}

u8 deobfuscate(u8 c, int idx) {
    for (int i = 0; i < 256; i++) {
        if (obfuscate((u8)i, idx) == c) {
            return (u8)i;
        }
    }
    return 0;
}

void recursive_print(u8 *arr, int len, int idx) {
    if (idx >= len) {
        return;
    }
    u8 ch = deobfuscate(arr[idx], idx);
    cout << (char)ch;
    recursive_print(arr, len, idx + 1);
}

int do_nothing(int a, int b, int c) {
    return (a + b - c) * (a % 2 + b % 3 + c % 7);
}

int main() {
    init_table();

    u8 raw_data[] = {
        obfuscate('h', 0), obfuscate('e', 1), obfuscate('l', 2),
        obfuscate('l', 3), obfuscate('o', 4), obfuscate(' ', 5),
        obfuscate('w', 6), obfuscate('o', 7), obfuscate('r', 8),
        obfuscate('l', 9), obfuscate('d', 10), obfuscate('\n', 11)
    };

    int dummy1 = do_nothing(1, 2, 3);
    int dummy2 = do_nothing(10, 20, 30);
    char buffer[BUF_SIZE];
    memset(buffer, 0, BUF_SIZE);
    memcpy(buffer, raw_data, sizeof(raw_data));

    for (int i = 0; i < 5; i++) {
        dummy1 += lcg() % 100;
        dummy2 -= lcg() % 50;
    }

    recursive_print((u8*)buffer, sizeof(raw_data), 0);

    if (dummy1 > dummy2) {
        return 0;
    } else {
        return 0;
    }
}