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 C# (judge verdict: Accepted)

using System;

namespace ITP1_9_D
{
    class Program
    {
        static void Main(string[] args)
        {

            string str = Console.ReadLine();
            int q = int.Parse(Console.ReadLine());

            for (int i = 0; i < q; i++)
            {
                string[] input = Console.ReadLine().Split(' ');
                int a = int.Parse(input[1]);
                int b = int.Parse(input[2]);

                switch (input[0])
                {
                    case "print":
                        Console.WriteLine(str.Substring(a, b - a + 1));
                        break;
                    case "reverse":
                        string copy = null;
                        for (int j = b; j >= a; j--)
                            copy += str[j];
                        Setstr(a, b, ref str, copy);
                        break;
                    case "replace":
                        Setstr(a, b, ref str, input[3]);
                        break;
                    default:
                        break;
                }
            }
        }

        static void Setstr(int a, int b, ref string str,string rep)
        {
            if (a == 0) str = rep + str.Substring(b + 1);
            else if (b == 0) str = str.Substring(0, a) + rep;
            else str = str.Substring(0, a) + rep + str.Substring(b + 1);
        }
    }
}