#include <stdio.h>
char r[10],t;
int i;
void x()
{
	t=r[i];
	r[i]=r[i+1];
	r[i+1]=t;
}
int main()
{
	scanf ("%s",r);
	for (i=0;r[i]!='\0';i++)
	{	if ((r[i]=='V')&&(r[i+1]=='I')&&(r[i+2]!='I')) x();
		if ((r[i]=='X')&&(r[i+1]=='I')&&(r[i+2]!='I')) x();
		if ((r[i]=='L')&&(r[i+1]=='X')&&(r[i+2]!='X')) x();
	}
	printf ("%s",r);
	printf ("\n");
	return 0;
}