The following incomplete (columns have missing amounts) pension spreadsheet is for Old Tucson Corporation (OTC).

($ in millions) debit (credit)	PBO	Plan Assets	Prior Service Cost	Net (Gain) Loss	Pension Expense	Cash	Net Pension (Liability)/Asset
Beginning balance	(500)			58
Service cost					62
Interest cost
Expected return on assets					(23)
Gain/loss on assets				(2)
Amortization of:
Prior service cost			(6)
Net gain/loss
Loss on PBO	(25)			25
Contributions to fund						(56)
Retiree benefits paid	43	(43)
Ending balance	(574)	288	54	78			(286)

What is OTC's pension expense for the year?