Reporting of fellowship income with 1098-T Box 7 checked

My 2020 1098-T reports amount X in Box 5. This includes amount Y disbursed to me in January 2021 for an academic period beginning January - March 2021. Box 7 of my 2020 1098-T is checked. 

 

Question: On my tax return for 2020, do I report amount X or X - Y? 

 

Thank you for your help.