; of which $31,097,781,000 (reduced by $4,500,000) (reduced by $5,000,000) (reduced by $5,000,000) (increased by $5,000,000), shall be for operation and maintenance, of which not to exceed 1 percent shall remain available for obligation until September 30, 2022, and of which up to $16,024,715,000 may be available for contracts entered into under the TRICARE program; of which $557,896,000, to remain available for obligation until September 30, 2023, shall be for procurement