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

fscanf(STDIN, '%s', $string);
fscanf(STDIN, '%d', $n);

$chars = preg_split('//', $string, -1, PREG_SPLIT_NO_EMPTY);

for ($i = 0; $i < $n; $i++) {
    $line = trim(fgets(STDIN));

    $ops = preg_split('/ /', $line);

    if ('replace' === $ops[0]) {
        $chars = replace($chars, $ops[1], $ops[2], $ops[3]);
    }

    if ('reverse' === $ops[0]) {
        $chars = reverse($chars, $ops[1], $ops[2]);
    }

    if ('print' === $ops[0]) {
        print_chars($chars, $ops[1], $ops[2]);
    }
}

function replace($chars, $from, $to, $replace)
{
    $replaces = preg_split('//', $replace, -1, PREG_SPLIT_NO_EMPTY);

    for ($i = $from, $j =0; $i <= $to; $i++, $j++) {
        $chars[$i] = $replaces[$j];
    }

    return $chars;
}

function reverse($chars, $from, $to)
{
    $reverse_chars = array();
    for ($i = $from; $i <= $to; $i++) {
        $reverse_chars[] = $chars[$i];
    }
    $reverse_chars = reverse_all($reverse_chars);

    for ($i = $from, $j = 0; $i <= $to; $i++, $j++) {
        $chars[$i] = $reverse_chars[$j];
    }

    return $chars;
}

function reverse_all($chars)
{
    $reversed = array();

    for ($i = count($chars) - 1; $i >= 0; $i--) {
        $reversed[] = $chars[$i];
    }

    return $reversed;
}

function print_chars($chars, $from, $to)
{
    for ($i = $from; $i <= $to; $i++) {
        echo $chars[$i];
    }
    echo "\n";
}