  (1:0-4) let a =                 <--    (1:0-4) let a = 
          ^^^^                                   ^^^^

  (1:4-5) let a = `               <--    (1:4-5) let a = `
              ^                                      ^

  (1:5-8) et a = `a${             <--    (1:5-8) et a = `a${
              ^^^                                    ^^^

 (1:8-12) a = `a${b}c`            <--   (1:8-12) a = `a${b}c`
              ^^^^                                   ^^^^

(1:12-13) `a${b}c`;               <--  (1:12-13) `a${b}c`;
              ^                                      ^

(1:13-16) a${b}c`;                <--  (1:13-16) a${b}c`;
              ^^^                                    ^^^

(1:16-17) b}c`;                   <--  (1:16-17) b}c`;
              ^                                      ^
