Sylvester files as a single taxpayer during 2018. He itemizes deductions for regular tax purposes. He paid charitable contributions of $7,000, real estate taxes of $1,000, state income taxes of $4,000, and mortgage interest of $2,000 on $30,000 of acquisition indebtedness on his home. Sylvester's regular taxable income is $100,000 What is Sylvester's AMTI