Output ASCII character code

Question

From the socket server, I send the character whose ASCII code is 65 (A).

s.sendall(chr(65).encode("utf-8"))

A client written in C accepts this symbol.

 char buf[10]; recv(sock, buf, sizeof(buf) , 0);

How can I display the ASCII character code on the client?

chr(65).encode("utf-8") is at least redundant .. print: `printf ("% c - 0x% x ", buf [0], buf [0]);

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