Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Deganga (Vidhan Sabha constituency)
Table title:
Members of Legislative Assembly
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Election Year </th><th colspan=1 rowspan=1 > Constituency </th><th colspan=1 rowspan=1 > Name of M.L.A. </th><th colspan=1 rowspan=1 > Party Affiliation </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1951 </td><td class="highlighted"  colspan=1 rowspan=1 > Deganga </td><td class="highlighted"  colspan=1 rowspan=1 > Rafiuddin Ahmed </td><td class="highlighted"  colspan=1 rowspan=1 > Indian National Congress </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1957 </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Rafiuddin Ahmed </td><td class="highlighted"  colspan=1 rowspan=1 > Indian National Congress </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Atul Krishna Roy </td><td class="highlighted"  colspan=1 rowspan=1 > Indian National Congress </td></tr>
<tr> <td colspan=1 rowspan=1 > 1962 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Maulana Bazlur Rahman Durgapuri </td><td colspan=1 rowspan=1 > Indian National Congress </td></tr>
<tr> <td colspan=1 rowspan=1 > 1967 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > J.Kabir </td><td colspan=1 rowspan=1 > Bangla Congress </td></tr>
<tr> <td colspan=1 rowspan=1 > 1969 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Harun-Or-Rashid </td><td colspan=1 rowspan=1 > Progressive Muslim League </td></tr>
<tr> <td colspan=1 rowspan=1 > 1971 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Harun-Or-Rashid </td><td colspan=1 rowspan=1 > Progressive Muslim League </td></tr>
<tr> <td colspan=1 rowspan=1 > 1972 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > M.Shaukat Ali </td><td colspan=1 rowspan=1 > Indian National Congress </td></tr>
<tr> <td colspan=1 rowspan=1 > 1977 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > A.K.M. Hassan Uzzaman </td><td colspan=1 rowspan=1 > Indian Union Muslim League </td></tr>
<tr> <td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Dr. Mortoza Hossain </td><td colspan=1 rowspan=1 > All India Forward Bloc </td></tr>
<tr> <td colspan=1 rowspan=1 > 1987 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > A.K.M. Hassan Uzzaman </td><td colspan=1 rowspan=1 > Indian Union Muslim League </td></tr>
<tr> <td colspan=1 rowspan=1 > 1991 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Md. Yakub </td><td colspan=1 rowspan=1 > All India Forward Bloc </td></tr>
<tr> <td colspan=1 rowspan=1 > 1996 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Md. Yakub </td><td colspan=1 rowspan=1 > All India Forward Bloc </td></tr>
<tr> <td colspan=1 rowspan=1 > 2001 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Md. Yakub </td><td colspan=1 rowspan=1 > All India Forward Bloc </td></tr>
<tr> <td colspan=1 rowspan=1 > 2006 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Dr. Mortoza Hossain </td><td colspan=1 rowspan=1 > All India Forward Bloc </td></tr>
<tr> <td colspan=1 rowspan=1 > 2011 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Dr. M. Nuruzzaman </td><td colspan=1 rowspan=1 > All India Trinamool Congress </td></tr>
</table>
Question:
Who won the Deganaga seat in 1951 and 1957?
Answer:
Rafiuddin Ahmed and Atul Krishna Roy, both of Congress, won the Deganaga seat in 1957 and in 1951, Rafiuddin Ahmed won the seat.