20 lines
364 B
Perl
20 lines
364 B
Perl
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use 5.20.0;
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use List::AllUtils qw/ first_index indexes /;
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my @d = 'a'..'p';
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for ( split ',', <> ) {
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if( /s(\d+)/ ) {
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splice @d, 0, 0, splice @d, -$1;
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}
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elsif( m#x(\d+)/(\d+)# ) {
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@d[$1,$2] = @d[$2,$1];
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}
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elsif( m#p(.)/(.)# ) {
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my @i= indexes { $_ ~~ [ $1, $2 ] } @d;
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@d[@i] = @d[reverse@i];
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}
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}
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say @d;
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