Fix character input

Previously it was taking the whole input line, keeping the first character, and throwing away the rest of the line. Now it keeps the rest of the line for follow-up input reading.

interpreter/main.py

@@ -265,7 +265,7 @@ def eval_command(self, command: str, local_memory, local_pointers_mem, local_act
 			if command == "$.":
 				main_mem[main_act][main_mem_ptr[main_act]] = float(input())
 			if command == "$,":
-				main_mem[main_act][main_mem_ptr[main_act]] = ord(input()[0])
+				main_mem[main_act][main_mem_ptr[main_act]] = ord(sys.stdin.read(1))
 			if command == "[":
 				if main_mem[main_act][main_mem_ptr[main_act]] == 0:
 					if self.program_pointer in self.loops: