lima u.s. president barack obama russian counterpart vladimir putin speak around four minutes sunday apec summit syria ukraine likely last in-person meet obama leave office two men meet start summit meet lima peru capital exchange pleasantries remain stand speak obama late say news conference tell putin u.s. deeply concern bloodshed chaos syria sow constant bomb attack syrian russian militaries ceasefire political transition need usual candid courteous clear strong differences policy obama say putin say separate news conference thank obama sunday meet lima years joint work tell would happy see obama russia anytime want desire putin say obama putin challenge relationship u.s. president say last week warn putin consequences cyber attack attribute moscow see try influence u.s. election obama say also urge president putin help implement minsk peace agreement work france germany ukraine unite state halt conflict donbass region ukraine race white house republican president-elect donald trump praise putin putin say sunday trump confirm will mend tie obama putin talk syria ukraine quick summit meet