Input fixes

src/main.zig

@@ -37,12 +37,13 @@ fn getInput(message: []const u8) !usize {
     var line_buffer: [100]u8 = undefined;
     var w: std.io.Writer = .fixed(&line_buffer);
 
-
     while (true) {
+        w.end = 0;
         try output.writeAll(message);
         try output.flush();
 
         const line_length = try stdin.interface.streamDelimiterLimit(&w, '\n', .unlimited);
+        stdin.interface.toss(1);
         const input_line = line_buffer[0..line_length];
 
         const res = std.fmt.parseInt(usize, input_line, 10) catch {