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 JAVA (judge verdict: Accepted)


import java.util.Scanner;

public class Main {
	    public static void main(String[] args) throws Exception {
	        Scanner sc = new Scanner(System.in);
	        String str = sc.next();
	        StringBuffer strBuf = new StringBuffer(str);
	        int q = sc.nextInt();
	        for(int i = 0; i < q; i++){
	            String order = sc.next();
	            int x = sc.nextInt();
	            int y = sc.nextInt()+1;
	            //System.out.println("Abc=" +x +":" + y);
	            //???????????????????????????
	            if(order.equals("replace")){
	            	//????????????????????????????????????
	                String repStr = sc.next();
	                //????????????a???????????????????????????repStr?????????
	                strBuf = strBuf.replace(x,y,repStr);
	                //????????????
	               // System.out.print("strBUF=" + strBuf);
	               //?????????????????¢?????????
	            }else if(order.equals("reverse")){
	            	//????????????a???????????????????????????????????????????????????word?????????
	            	String word = strBuf.substring(x,y);
	            	//a??????b?????????????????\??£????????????
	            	//System.out.print("WORD="+word );
	            	//StringBuffer revBuf = new StringBuffer(strBuf.substring(x,y));
	            	//??°??????StringBuffer?????????
	                StringBuffer revBuf = new StringBuffer(word);
	                //rebuf?????????????????¢?????????????????¨???string?????????
	                String revStr = revBuf.reverse().toString();
	               // System.out.println(revStr);
	                //strBuf??????????????????
	                strBuf = strBuf.replace(x,y,revStr);
	            }else{
	                System.out.println(strBuf.substring(x,y));
	            }
	        }
    }
}