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gistfile1.cpp

#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <string.h>
int main()
{

  int b = 0, bc = 0, i, ii, sum = 1, myAbs[100], time = 0, ftime;

  char a[100] = { "" };

  char c[100];

  while (a[0] != '#')

    {

      scanf ("%s", a);

      b = 0;
      bc = 0;

      if (a[0] == '#')

	break;

      else

	{

	  scanf ("%s", c);

	  for (i = 0; i < strlen (a); i++)

	    {

	      switch (a[i])

		{

		case 'I':

		  b += 1;

		  break;

		case 'V':

		  if (a[i - 1] == 'I')

		    b += 3;

		  else

		    b += 5;

		  break;

		case 'X':

		  if (a[i - 1] == 'I')

		    b += 8;

		  else

		    b += 10;

		  break;

		case 'L':

		  if (a[i - 1] == 'X')

		    b += 30;

		  else

		    b += 50;

		  break;

		case 'C':

		  if (a[i - 1] == 'X')

		    b += 80;

		  else

		    b += 100;

		  break;

		case 'D':

		  if (a[i - 1] == 'C')

		    b += 300;

		  else

		    b += 500;

		  break;

		case 'M':

		  if (a[i - 1] == 'C')

		    b += 800;

		  else

		    b += 1000;

		  break;

		}

	    }

	  for (i = 0; i < strlen (c); i++)

	    {

	      switch (c[i])

		{

		case 'I':

		  bc += 1;

		  break;

		case 'V':

		  if (c[i - 1] == 'I')

		    {

		      bc += 3;

		    }

		  else

		    bc += 5;

		  break;

		case 'X':

		  if (c[i - 1] == 'I')

		    bc += 8;

		  else

		    bc += 10;

		  break;

		case 'L':

		  if (c[i - 1] == 'X')

		    bc += 30;

		  else

		    bc += 50;

		  break;

		case 'C':

		  if (c[i - 1] == 'X')

		    bc += 80;

		  else

		    bc += 100;

		  break;

		case 'D':

		  if (c[i - 1] == 'C')

		    bc += 300;

		  else

		    bc += 500;

		  break;

		case 'M':

		  if (a[i - 1] == 'C')

		    bc += 800;

		  else

		    bc += 1000;

		  break;

		}

	    }

	  myAbs[time] = abs (b - bc);

	  time++;

	  ftime = time;

	}

    }

  time = 0;

  while (time < ftime)

    {

      if (myAbs[time] == 0)

	{

	  printf ("ZERO\n");

	  time++;

	}

      else if (myAbs[time] >= 1000)

	{

	  myAbs[time] -= 1000;

	  if (myAbs[time] == 0)

	    {

	      printf ("M\n");

	      time++;

	    }

	  else

	    {

	      printf ("M");

	    }

	}

      else if (myAbs[time] >= 900)

	{

	  myAbs[time] -= 900;

	  if (myAbs[time] == 0)

	    {

	      printf ("CM\n");

	      time++;

	    }

	  else

	    {

	      printf ("CM");

	    }

	}

      else if (myAbs[time] >= 500 && myAbs[time] < 900)

	{

	  i = myAbs[time] / 100;

	  myAbs[time] -= (myAbs[time] / 100) * 100;

	  printf ("D");

	  for (i; i > 5; i--)

	    {

	      printf ("C");

	    }

	  if (myAbs[time] == 0)

	    {

	      printf ("\n");

	      time++;

	    }

	}

      else if (myAbs[time] >= 400 && myAbs[time] < 500)

	{

	  myAbs[time] -= 400;

	  if (myAbs[time] == 0)

	    {

	      printf ("CD\n");

	      time++;

	    }

	  else

	    {

	      printf ("CD");

	    }

	}

      else if (myAbs[time] < 400 && myAbs[time] >= 100)

	{

	  i = myAbs[time] / 100;

	  myAbs[time] -= (myAbs[time] / 100) * 100;

	  for (i; i > 0; i--)

	    {

	      printf ("C");

	    }

	  if (myAbs[time] == 0)

	    {

	      printf ("\n");

	      time++;

	    }

	}

      else if (myAbs[time] <= 99 && myAbs[time] >= 90)

	{

	  myAbs[time] -= 90;

	  if (myAbs[time] == 0)

	    {

	      printf ("XC\n");

	      time++;

	    }

	  else

	    {

	      printf ("XC");

	    }

	}

      else if (myAbs[time] <= 89 && myAbs[time] >= 50)

	{

	  i = myAbs[time] / 10;

	  myAbs[time] -= (myAbs[time] / 10) * 10;

	  printf ("L");

	  for (i; i > 5; i--)

	    {

	      printf ("X");

	    }

	  if (myAbs[time] == 0)

	    {

	      printf ("\n");

	      time++;

	    }

	}

      else if (myAbs[time] <= 49 && myAbs[time] >= 40)

	{

	  myAbs[time] -= 40;

	  if (myAbs[time] == 0)

	    {

	      printf ("XL\n");

	      time++;

	    }

	  else

	    {

	      printf ("XL");

	    }

	}

      else if (myAbs[time] <= 39 && myAbs[time] >= 10)

	{

	  i = myAbs[time] / 10;

	  myAbs[time] -= (myAbs[time] / 10) * 10;

	  for (i; i >= 1; i--)

	    {

	      printf ("X");

	    }

	  if (myAbs[time] == 0)

	    {

	      printf ("\n");

	      time++;

	    }

	}

      else if (myAbs[time] == 9)

	{

	  printf ("IX\n");

	  time++;

	}

      else if (myAbs[time] <= 8 && myAbs[time] >= 5)

	{

	  printf ("V");

	  i = myAbs[time];

	  for (i; i > 5; i--)

	    {

	      printf ("I");

	    }

	  time++;

	  printf ("\n");

	}

      else if (myAbs[time] == 4)

	{

	  printf ("IV\n");

	  time++;

	}

      else if (myAbs[time] >= 1 && myAbs[time] <= 3)

	{

	  i = myAbs[time];

	  for (i; i > 0; i--)

	    {

	      printf ("I");

	    }

	  time++;

	  printf ("\n");

	}

    }

  return 0;

}