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BEGIN{FS="[TDFL]"}{s=1;for(i=1;i<NF;i++)s=s*2;print s}

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BEGIN { FS="</*TD>|</*TR>" } 
/<\/*t[TD]>.*[A-Z][A-Z]/ {print $3, $5, $7 }

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BEGIN { FS="</*td>|</*tr>" } 
/<\/*t[td]>.*[A-Z][A-Z]/ {print $3, $5, $7 }

1
/foo/

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9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 ...

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#!/bin/bash
x = 10
echo $x

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{
        num = $1;
        if(num == 42)
                exit;
        else
                printf("%d\n", num);
}

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BEGIN { 
printf "hi"
}
{ printf "Hi kumar"
k=10
printf "%d",k
}

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$ gawk {z=$_;n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c}

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$ gawk {z=$S;n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c}

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2
 
$ gawk {z=$3;n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c}

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2
 
$ gawk z=$1;{n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c}

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2
 
$ gawk {z=$1;n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c}

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2
 
$ gawk {z=$0;n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c}

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$ gawk {n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c}

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$ gawk {z=$2;while(z--){n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c}} 

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$ gawk {z=$1;while(z--){n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c}} 

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$ gawk {z=$1;while(z--){n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c}} 

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2
 
$ gawk {n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c} 

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2
 
$ gawk {n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c} << eof

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$ gawk '{n=$1;a=0;b=1;c=1;for(i=1;i<n;i++){c=a+b;a=b;b=c};print c}' << eof

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BEGIN{c=$1;
for (n=1;n<=c;++n)
  {k=$1;
a=1; b=1;x=2;
while(++x<=k) 
   {t=a;a=a+b;b=t;};print a;
} exit}

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7
BEGIN{c=$1;
for (n=1;n<=c;++n)
  {k=$1;
a=1; b=1;x=2;
while(++x<=k) 
   {t=a;a=a+b;b=t;}print a;
} exit}

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7
BEGIN{c=$1;print c;
for (n=1;n<=c;++n)
  {k=split($0,s);
a=1; b=1;x=2; print k;
while(++x<=k) 
   {print a;t=a;a=a+b;b=t}
} exit}

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7
BEGIN{$c;print $c;
for (n=1;n<=c;++n)
  {k=split($0,s);
a=1; b=1;x=2; print k;
while(++x<=k) 
   {print a;t=a;a=a+b;b=t}
} exit}

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7
BEGIN{$c=<>;print $c;
for (n=1;n<=c;++n)
  {k=split($0,s);
a=1; b=1;x=2; print k;
while(++x<=k) 
   {print a;t=a;a=a+b;b=t}
} exit}

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7
BEGIN{$c;print c;
for (n=1;n<=c;++n)
  {k=split($0,s);
a=1; b=1;x=2; print k;
while(++x<=k) 
   {print a;t=a;a=a+b;b=t}
} exit}

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7
BEGIN{$c=<>;print c;
for (n=1;n<=c;++n)
  {k=split($0,s);
a=1; b=1;x=2; print k;
while(++x<=k) 
   {print a;t=a;a=a+b;b=t}
} exit}

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BEGIN{c=split($d,s);print s;
for (n=1;n<=c;++n)
  {k=split($0,s);
a=1; b=1;x=2; print k;
while(++x<=k) 
   {print a;t=a;a=a+b;b=t}
} exit}

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BEGIN{c=split($d,s);print c;
for (n=1;n<=c;++n)
  {k=split($0,s);
a=1; b=1;x=2; print k;
while(++x<=k) 
   {print a;t=a;a=a+b;b=t}
} exit}