Problem:
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Transformation

Write a program which performs a sequence of commands to a given string $str$. The command is one of:

print a b: print from the a-th character to the b-th character of $str$

reverse a b: reverse from the a-th character to the b-th character of $str$

replace a b p: replace from the a-th character to the b-th character of $str$ with p

Note that the indices of $str$ start with 0.

Input

In the first line, a string $str$ is given. $str$ consists of lowercase letters. In the second line, the number of commands q is given. In the next q lines, each command is given in the above mentioned format.

Output

For each print command, print a string in a line.

Constraints

$1 \leq $ length of $str \leq 1000$

$1 \leq q \leq 100$

$0 \leq a \leq b < $ length of $str$

for replace command, $b - a + 1 = $ length of $p$

Sample Input 1

abcde
3
replace 1 3 xyz
reverse 0 2
print 1 4

Sample Output 1

xaze

Sample Input 2

xyz
3
print 0 2
replace 0 2 abc
print 0 2

Sample Output 2

xyz
abc

Solution in PHP (judge verdict: Accepted)

<?php
$S=trim(fgets(STDIN));
$Q=trim(fgets(STDIN));
for($I=0;$I<$Q;$I++){
  $C=explode(' ',trim(fgets(STDIN)));

  if($C[0][2]=='i'){
    $p='';
    for($i=$C[1];$i<=$C[2];$i++) $p.=$S[$i];
    echo $p,PHP_EOL;
  }
  elseif($C[0][2]=='v'){
    $l=$C[1]+(($C[2]+1-$C[1])>>1);
    for($i=$C[1];$i<$l;$i++){
      $j=$C[1]+$C[2]-$i;
      $s=$S[$j];
      $S[$j]=$S[$i];
      $S[$i]=$s;
    }
  }
  else for($i=$C[1];$i<=$C[2];$i++) $S[$i]=$C[3][$i-$C[1]];
}