private boolean r_tidy_up() {
		int among_var;
		// (, line 183
		// [, line 184
		ket = cursor;
		// substring, line 184
		among_var = find_among_b(a_7, 4);
		if (among_var == 0) {
			return false;
		}
		// ], line 184
		bra = cursor;
		switch (among_var) {
		case 0:
			return false;
		case 1:
			// (, line 188
			// delete, line 188
			slice_del();
			// [, line 189
			ket = cursor;
			// literal, line 189
			if (!(eq_s_b(1, "\u043D"))) {
				return false;
			}
			// ], line 189
			bra = cursor;
			// literal, line 189
			if (!(eq_s_b(1, "\u043D"))) {
				return false;
			}
			// delete, line 189
			slice_del();
			break;
		case 2:
			// (, line 192
			// literal, line 192
			if (!(eq_s_b(1, "\u043D"))) {
				return false;
			}
			// delete, line 192
			slice_del();
			break;
		case 3:
			// (, line 194
			// delete, line 194
			slice_del();
			break;
		}
		return true;
	}