root#0000:~# ./charcode
ł
Got char c: C5
Got char c: 82
Got char c: 0A
^C
root#0000:~#

root#0000:~# echo -e 'xC5x82'
ł
root#0000:~#

#include <stdio.h>

int main()
{
    int c;

    while((c=getchar())!=EOF) {
        printf("Got char c: %02Xn", (unsigned char)c);
    }

    return 0;
}