Warning: Statement has no effect.
 --> message_format_utf8/input.sol:5:51:
  |
5 | /* ©©©©ﾩ©©©©© 2017 */ constructor () { unicode"©©©©ﾩ©©©©©" ; }
  |                                        ^^^^^^^^^^^^^^^^^^^

Warning: Statement has no effect.
 --> message_format_utf8/input.sol:9:25:
  |
9 |                         unicode"S = π × r²";
  |                         ^^^^^^^^^^^^^^^^^^^

Warning: Statement has no effect.
  --> message_format_utf8/input.sol:10:39:
   |
10 | /* ₀₁₂₃₄⁵⁶⁷⁸⁹ */		unicode"∑ 1/n! ≈ 2.7";                 // tabs in-between
   |                 		^^^^^^^^^^^^^^^^^^^^^

Warning: Statement has no effect.
  --> message_format_utf8/input.sol:11:30:
   |
11 | /* Ŀŏŗėɯ ïƥŝʉɱ */		unicode"μὴ		χεῖρον		βέλτιστον"; // tabs in-between and inside
   |                  		^^^^^^^^^^		^^^^^^		^^^^^^^^^^

Warning: Function state mutability can be restricted to pure
  --> message_format_utf8/input.sol:15:2:
   |
15 | 	function selector() public returns(uint) { // starts with tab
   | 	^ (Relevant source part starts here and spans across multiple lines).