// ACSL Intermediate Division Programming Contest #3

// Tim Thomas

// Oklahoma School of Science and Mathematics

#include <iostream>

using namespace std;

//char* interpret(char string[]);

void interpret(char string[]);

char buffer[100];

char* answer;

char temp[100];

int length;

int main()

{

for(int z=0;z<5;z++)

{

for(int w=0; w<100; w++)

buffer[w]=0;

cout << "Please enter the expression:\n";

cin >> buffer;

int num=strlen(buffer)-1;

while(buffer[num]!='/')

num--;

answer=buffer+num+1;

length=strlen(answer);

interpret(buffer);

cout << answer << endl;

}

system("PAUSE");

return 0;

}

void interpret(char string[])

{

if(string[0]=='L')

{

if(string[1]=='S'&&string[2]=='-')

{

int number=int(string[3]-48);

string+=5;

for(int t=0;t<length;t++)

if(t+number<length)

answer[t]=answer[t+number];

else

answer[t]='#';

interpret(string);

}

else if(string[1]=='C')

{

int number=int(string[3]-48);

string+=5;

for(int t=0;t<length;t++)

temp[t]=answer[t];

for(int t=0;t<length;t++)

answer[t]=temp[(t+number)%length];

interpret(string);

}

}

else if(string[0]=='R')

{

if(string[1]=='S')

{

int number=int(string[3]-48);

string+=5;

for(int t=length-1;t>=0;t--)

if(t-number>=0)

answer[t]=answer[t-number];

else

answer[t]='#';

interpret(string);

}

else if(string[1]=='C')

{

int number=int(string[3]-48);

number=(length-(number%length))%length;

string+=5;

for(int t=0;t<length;t++)

temp[t]=answer[t];

for(int t=0;t<length;t++)

answer[t]=temp[(t+number)%length];

interpret(string);

}

else if(string[1]=='E'&&string[2]=='V'&&string[3]=='-')

{

int s=int(string[4]-48);

int l=int(string[5]-48);

string+=7;

int num=s-1+l-1;

for(int t=0;t<length;t++)

temp[t]=answer[t];

for(int t=s-1;t<l+s-1;t++)

{

answer[t]=temp[num];

num--;

}

interpret(string);

}

}

else if(string[0]=='M'&&string[1]=='C')

{

int s=int(string[3]-48);

int l=int(string[4]-48);

int x=int(string[5]-48);

char d=string[6];

string+=8;

if(d=='R')

x=(l-(x%l))%l;

for(int t=0;t<length;t++)

temp[t]=answer[t];

for(int t=s-1;t<s-1+l;t++)

answer[t]=temp[(t+x-s+1)%l+s-1];

interpret(string);

}

}

/*

char* interpret(char string[])

{

//cout << "interpret(" << string << ")\n";

if(string[0]=='L')

{

if(string[1]=='S'&&string[2]=='-')

{

int number=int(string[3]-48);

string+=5;

//cout << "calling interpret from LS.\n";

string=interpret(string);

//cout << "in LS.\n";

int length=strlen(string);

for(int t=0;t<length;t++)

if(t+number<length)

string[t]=string[t+number];

else

string[t]='#';

//cout << "returning:" << string << endl;

}

else if(string[1]=='C')

{

}

}

else if(string[0]=='R')

{

if(string[1]=='S')

{

int number=int(string[3]-48);

string+=5;

//cout << "calling interpret from RS.\n";

string=interpret(string);

//cout << "in RS.\n";

int length=strlen(string);

for(int t=length-1;t>=0;t--)

if(t-number>=0)

string[t]=string[t-number];

else

string[t]='#';

//cout << "returning:" << string << endl;

}

else if(string[1]=='C')

{

}

else if(string[1]=='E'&&string[2]=='V'&&string[3]=='-')

{

}

}

else if(string[0]=='M'&&string[1]=='C')

{

}

return string;

}

*/