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  1. or download this
    time ./perl6 -e 'my $s; for 1..10000 {$s+=1./$_**2};say $s'
    ===SORRY!===
    Unable to parse blockoid, couldn't find final '}' at line 2
    
  2. or download this
    ./perl6 -e 'my $s;my Num $i;for 1..10000 -> $i {$s+=1/$i**2};say $s'
    
  3. or download this
    ./perl6 -e 'my Num $s;my Num $i;for 1..10000 -> $i {$s+=1/$i**2};say $
    +s'
    Type check failed in assignment to '$s'; expected 'Num' but got 'Rat'
    ...
      in method eager at src/gen/CORE.setting:4715
      in method eager at src/gen/CORE.setting:1028
      in sub eager at src/gen/CORE.setting:5000