#include <iostream>
using namespace std;
 
#include <stdio.h>
#include <inttypes.h>
 
int main()
{
    char format[] = "%*[^,], HEX_DATA:%4" SCNx16 ", NEGATIVE_VAL:%" SCNd8;
    char str[] = "text_to_be_skipped, HEX_DATA:d800, NEGATIVE_VAL:-20";
 
    uint16_t hex_data = 0;
    int8_t neg_val = 0;
 
    int status = sscanf(str, format, &hex_data, &neg_val);
 
    printf("Status: %d, HEX_DATA: %04" PRIx16 ", NEGATIVE_VAL: %" PRId8, status, hex_data, neg_val);
 
    return 0;
}

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