#include <openssl/bn.h>
#include <stdio.h>
#include <string.h> 
#define PRINT(obj) print_fmt(BN_bn2hex(obj))
void print_fmt(char* after){
    for(int i=0; i < strlen(after); i++){
        if(i != 0 && i % 2 == 0)
            printf(":");
        if(after[i] - '0' <= 9 && after[i] - '0' >= 0)
            printf("%c",after[i]);
        else
            printf("%c", after[i]+32);
    }
}
int main(){
    BIGNUM *bn1 = BN_new();
    BIGNUM *bn2 = BN_new();
    BIGNUM *res = BN_new();
    BIGNUM *rem = BN_new();
    BN_CTX *ctx = BN_CTX_new();
    char payload1[] = "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";
    char payload2[] = "00d2c601326b4c4b855f527bb78ed68ae4c8767e6bc9249a3ecacd2fc9b875d4f97111e1cfbe62d32c5ff9fd9bfaed62f3df44c757fbee9bb232cb5449296c692e301d8c1ffab18ee44966c1fb927c82ca60c940a40ab2db50ecf6ff98a71623388d06d27ca9858ac22b4dd4e6f189e5b04254a05f3cddc764330511fbee8b2607";
    BN_hex2bn(&bn1, payload1);
    BN_hex2bn(&bn2,payload2);
    //printf(" --- ADD Operation: ---\n");
    BN_add(res, bn1, bn2);
    //if(BN_check_prime(bn1, NULL, NULL))
    //    printf("\n NUMBER is prime \n");
    PRINT(res);
    printf(" ");
    //printf("\n--- SUB Operation ---\n");
    BN_sub(res, bn1, bn2);
    //if(BN_check_prime(bn1, NULL, NULL))
    //    printf("\n NUMBER is prime \n");
    PRINT(res);
    printf(" ");
    //printf("\n--- MUL Operation --- \n");
    BN_mul(res,bn1,bn2,ctx);
    //if(BN_check_prime(bn1, NULL, NULL))
    //    printf("\n NUMBER is prime \n");
    PRINT(res);
    printf(" ");
    //Skip BN_sqr
    BN_div(res,rem,bn1,bn2,ctx);
    PRINT(res);
    printf(" ");
    //if(BN_check_prime(bn1, NULL, NULL))
    //    printf("\n DIV is prime \n");
    //else
    //    printf("DIV is not prime \n");
    //printf("\nReminder:\n");
    PRINT(rem);
    printf(" ");
    //printf("\n --- MOD Operation --- \n");
    BN_mod(rem, bn1, bn2,ctx);
    //if(BN_check_prime(bn1, NULL, NULL))
    //    printf("\n NUMBER is prime \n");
    PRINT(rem);
    printf(" ");
    //printf("\n --- NNMOD Operation --- \n");
    BN_nnmod(rem, bn1, bn2, ctx);
    //if(BN_check_prime(bn1, NULL, NULL))
    //    printf("\n NUMBER is prime \n");
    
    PRINT(rem);
    printf(" ");
    //printf("\n --- GCD Operation --- \n");
    BN_gcd(res, bn1, bn2, ctx);
    //if(BN_check_prime(bn1, NULL, NULL))
    //   printf("\n NUMBER is prime \n");
    PRINT(res);
    printf("\n");
    //if(BN_check_prime(bn1,NULL,NULL)){
    //    printf("BN1 is prime\n");
    //}
    //if(BN_check_prime(bn2,NULL,NULL)){
    //    printf("BN2 is prime\n");
    //}
    BN_free(bn1);
    BN_free(bn2);
    BN_free(res);
    BN_free(rem);
    BN_CTX_free(ctx);
    return 0;
}