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 aoj9d
{
    class Program
    {
        static void Main(string[] args)
        {
            string str = Console.ReadLine();
            int n = int.Parse(Console.ReadLine());
            
            for(int i = 0; i < n; i++)
            {
                string line = Console.ReadLine();
                string[] command = line.Split(' ');
                switch (command[0])
                {
                    case "print":
                        print(str,line);
                        break;

                    case "replace":
                        str = replace(str, line);
                        break;

                    case "reverse":
                        str = reverse(str, line);
                        break;
                }
            }
        }

        private static string reverse(string str, string line)
        {
            string[] command = line.Split(' ');
            int a = int.Parse(command[1]);
            int b = int.Parse(command[2]);
            char[] ch = str.ToCharArray();  //ch???a???????????????b?????????????????¢????????????
            char[] dummy = str.ToCharArray();


            for (int i = 0; i <= (b - a);i++)
            {
                ch[a + i] = dummy[ b - i];
            }

            string returnstr = new string(ch);
            return returnstr;
        }

        private static string replace(string str, string line)
        {
            string[] command = line.Split(' ');
            /*????????????????±????????????????command[3]*/
            int a = int.Parse(command[1]);

            string returnstr = str.Substring(0,a);       //?????????????????´??????????????§????????????
            returnstr += command[3];                    //?????????????????????????????£???
            str = str.Substring(a + command[3].Length);
            returnstr += str;
            return returnstr;
        }

        private static void print(string str, string line)
        {
            string[] command = line.Split(' ');
            int a = int.Parse(command[1]);
            int b = int.Parse(command[2]);
            string printstr = str.Substring(a,b-a+1);
            Console.WriteLine(printstr);
        }
    }
}