By John O'Donnell and Angeliki Koutantou FRANKFURT/ATHENS (Reuters) - Germany conceded on Thursday that Greece would need some debt restructuring as part of any new loan programme to make its economy viable as the Greek cabinet raced to finalise reform proposals to avert an imminent economic meltdown. The admission by German Finance Minister Wolfgang Schaeuble came hours before a midnight deadline for Athens to submit a reform plan meant to convince European partners to give it another loan to save it from a possible exit from the euro. Greece has already had two bailouts worth 240 billion euros from the euro zone and the International Monetary Fund, but its economy has shrunk by a quarter, unemployment is more than 25 percent and one in two young people is out of work.