subtasks:
  - score: 20
    type: sum
    cases: ['01','02','03','04','05','06','07','08','09',10,11,12,13,14,15,16,17,18,19,20]
  - score: 30
    type: sum
    cases: [21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50]
  - score: 30
    type: sum
    cases: [51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80]
  - score: 20
    type: sum
    cases: [81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100]

    
inputFile: 'gcd#.in'
outputFile: 'gcd#.out'