C / C++ / MFC

	CByteArray arrByte2;
	BYTE* pByteArray = (PBYTE)(LPCTSTR)sSerial;
// sSerial is jwKMTAABtm9D3CTrm6bmDRzVgxeQY66FZE4SQSjyPlCyjJK7v8ICQM2qIiQgafSb5PDubf8PDVa4n+b4CAbZdFEd+M6CzjHwRqje3DtGSeU=
// pByteArray is jwKMTAABtm9D3CTrm6bmDRzVgxeQY66FZE4SQSjyPlCyjJK7v8ICQM2qIiQgafSb5PDubf8PDVa4n+b4CAbZdFEd+M6CzjHwRqje3DtGSeU=
	arrByte2.SetSize(sSerial.GetLength());
	memcpy(arrByte2.GetData(), pByteArray, m_sSerial.GetLength());
// pByteArray is jwKMTAABtm9D3CTrm6bmDRzVgxeQY66FZE4SQSjyPlCyjJK7v8ICQM2qIiQgafSb5PDubf8PDVa4n+b4CAbZdFEd+M6CzjHwRqje3DtGSeU=
// arrByte2 is jwKMTAABtm9D3CTrm6bmDRzVgxeQY66FZE4SQSjyPlCyjJK7v8ICQM2qIiQgafSb5PDubf8PDVa4n+b4CAbZdFEd+M6CzjHwRqje3DtGSeU=ýýýý««««««««

#include <stdio.h>
#include <string.h>

#define EOL '\n'
#define MAX_SIZE 100

int main(){

    char text[MAX_SIZE], back[MAX_SIZE], temp[MAX_SIZE];
    int count, i, mark[50];

	//reading the text
    for(count=0; (text[count] = getc(stdin))!= EOL; ++count){
        mark[count]=0;
    }
    text[count] = '\0';

	//reversing the text
    for(i = count-1; i>=0; --i){
        back[(count-1)-i] = text[i];
    }
    back[count] = '\0';

	//noting the frequencies of the occurences of space
	for(i=count-1; i>=0; --i){
		if(back[i]== ' '){
            mark[i] = i;
        }
	}

	//irr-reversing each words at their respective place
    int j, k=0, l=0;
    for(i=0; i<count-1; i++){
        if(mark[i] != 0){
            for(j=mark[i]-1; j>=k; j--){
                temp[l] = back[j];					//it reverse the words btw two space entries
                l++;
            }           
            temp[mark[i]] = ' ';
            l= l+1;
            k = mark[i]+1;
        }
    }
    for(i=count-1; i>=k; i--){
    	temp[l] = back[i];				//it reverse the word after the last space entry. 
    	l++;
	}
    
    //printing the string.
    printf("\n%s", temp);
    return 0;
}