EXHIBIT 1

Joint Filing Agreement, dated March 18, 2014

PURSUANT TO RULE 13d-1(k)

The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D may be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained herein and therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows that such information is inaccurate.

Dated: March 18, 2014

SOROS FUND MANAGEMENT LLC
By:	/s/ Jay Schoenfarber
Name:	Jay Schoenfarber
Title:	Deputy General Counsel
GEORGE SOROS
By:	/s/ Jay Schoenfarber
Name:	Jay Schoenfarber
Title:	Attorney-in-Fact
ROBERT SOROS
By:	/s/ Jay Schoenfarber
Name:	Jay Schoenfarber
Title:	Attorney-in-Fact