Last programming assignment in the semester: write a program that prints what we liked to STDOUT and what we did not to STDERR. (in Hungarian)

message.c

#include <stdint.h>
#include <stdio.h>

uint64_t csoeoe(uint64_t thatFirstParam, uint64_t paramNumberOne, uint64_t dQw4w9WgXcQ) {
    return (int64_t)(((__int128_t)thatFirstParam*paramNumberOne)%dQw4w9WgXcQ);
}

uint64_t fueuetoeoecsoeoe(uint64_t ZWxzb1BhcmFtZXRlcg, uint64_t bWFzb2Rpa1BhcmFtZXRlcg, uint64_t dXRvbHNvUGFyYW1ldGVy) 
{ 
    uint64_t dmFsYW1pUmFuZG9tVmFsdG96bw = 1;
    ZWxzb1BhcmFtZXRlcg = ZWxzb1BhcmFtZXRlcg % dXRvbHNvUGFyYW1ldGVy;
    if (ZWxzb1BhcmFtZXRlcg == 0) return 0;
    while (bWFzb2Rpa1BhcmFtZXRlcg > 0) 
    { 
        if (bWFzb2Rpa1BhcmFtZXRlcg & 1) 
            dmFsYW1pUmFuZG9tVmFsdG96bw = csoeoe(dmFsYW1pUmFuZG9tVmFsdG96bw, ZWxzb1BhcmFtZXRlcg, dXRvbHNvUGFyYW1ldGVy); 
        bWFzb2Rpa1BhcmFtZXRlcg = bWFzb2Rpa1BhcmFtZXRlcg>>1;
        ZWxzb1BhcmFtZXRlcg = csoeoe(ZWxzb1BhcmFtZXRlcg, ZWxzb1BhcmFtZXRlcg, dXRvbHNvUGFyYW1ldGVy);
    }
    return dmFsYW1pUmFuZG9tVmFsdG96bw; 
}

uint64_t OA_AOO_OA_A[] = {
    0xe62389f8493,
    0x1478b8619c54,
    0xe42af521fd0,
    0x13c858c6de8e,
    0x2982e78d538,
    0xb6bba6a1a88,
    0x10b58820993b,
    0x12d09b68692b,
    0xe4ab66167cc,
    0xcd40e96e9e6,
    0x4da648135a7,
    0x8e74b3ecd28,
    0x5134c4a919c,
    0x6848613f527,
    0x106b7d9f19cc,
    0xd0477a7f454,
    0xedacef1de55,
    0xc27f66884b3,
    0x152961786676,
    0x99078ee8d47,
};

uint64_t O_OAO_OAO_AA_OOO_AAO[] = {
    0x10f853e362a6,
    0x129a2d104a98,
    0x13f5510c23e2,
    0x7cbae076464,
    0x1236a02fc3f7,
    0x11f6353ebcc,
    0x8e5ba532b34,
    0xb8403377533,
    0x1b410c797a0,
    0x11a555a74dd0,
    0x1dcf09a2bde,
    0xf24a4365e9d,
    0x1adee029e9f,
    0x1354a58a3c97,
    0x13d77b126ed3,
    0xa6c9ef0f199,
    0x1cd60ed12fe,
    0xd38557f9435,
    0xe875c334e26,
    0xb24e49231c8,
    0x3d9b39233fb,
    0x13d65909f00f,
    0xb834db6e5b1,
    0x3190cf813d2,
};

int main() {
    uint64_t lahpnRVxkU8;
    for (int i = 0; i<sizeof(OA_AOO_OA_A)/sizeof(OA_AOO_OA_A[0]); i++) {
        lahpnRVxkU8 = fueuetoeoecsoeoe(OA_AOO_OA_A[i], 65537, 23507814067939);
        fprintf(stdout, "%.4s", (char*)&lahpnRVxkU8);
    }
    for (int i = 0; i<sizeof(O_OAO_OAO_AA_OOO_AAO)/sizeof(O_OAO_OAO_AA_OOO_AAO[0]); i++) {
        lahpnRVxkU8 = fueuetoeoecsoeoe(O_OAO_OAO_AA_OOO_AAO[i], 65537, 23507814067939);
        fprintf(stderr, "%.4s", (char*)&lahpnRVxkU8);
    }
    return 0;
}