import sequtils
template times*(n:int,body) = (for _ in 0..<n: body)
template `max=`*(x,y) = x = max(x,y)
template `min=`*(x,y) = x = min(x,y)
proc getchar_unlocked():char {. importc:"getchar_unlocked",header: "<stdio.h>" ,discardable.}
proc scan(): int =
  while true:
    let k = getchar_unlocked()
    if k < '0': return
    result = 10 * result + k.ord - '0'.ord

proc solve(a,b,c:int):int =
  # A 10B -> A+B=C
  # 15 + 15*10
  for x in 1..a+b*10:
    for ia in 0..a:
      for ib in 0..b:
        # x円のものを ia+ib*10円で払う
        let g = ia + ib*10 - x
        if g < 0 : continue
        let res = (a-ia) + (b-ib) + (g mod 10) + (g div 10)
        if res != c : continue
        return x
  return 0

let a = scan()
let b = scan()
let c = scan()
# let ans = solve(a,b,c)
# echo (
#   proc():seq[seq[seq[int]]] =
#     result = newSeqWith(21,newSeqWith(21,newSeqWith(101)))
#     for a in 0..20:
#       for b in 0..20:
#         for c in 0..100:
#           result[a][b][c] = solve(a,b,c)
#   )()
const ABC = @[@[@[],@[10,9,8,7,6,5,4,3,2,1],@[20,10,9,8,7,6,5,4,3,2,1],@[30,20,10,9,8,7,6,5,4,3,2,1],@[40,30,20,10,9,8,7,6,5,4,3,2,1],@[50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[170,160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[180,170,160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[190,180,170,160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1],@[200,190,180,170,160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1]],@[@[1],@[11,1,9,8,7,6,5,4,3,2,1],@[21,11,1,9,8,7,6,5,4,3,2,1],@[31,21,11,1,9,8,7,6,5,4,3,2,1],@[41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[101,91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[111,101,91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[121,111,101,91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[131,121,111,101,91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[141,131,121,111,101,91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[151,141,131,121,111,101,91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[161,151,141,131,121,111,101,91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[171,161,151,141,131,121,111,101,91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[181,171,161,151,141,131,121,111,101,91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[191,181,171,161,151,141,131,121,111,101,91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1],@[201,191,181,171,161,151,141,131,121,111,101,91,81,71,61,51,41,31,21,11,1,9,8,7,6,5,4,3,2,1]],@[@[2,1],@[12,2,1,9,8,7,6,5,4,3,2,1],@[22,12,2,1,9,8,7,6,5,4,3,2,1],@[32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[102,92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[112,102,92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[122,112,102,92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[132,122,112,102,92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[142,132,122,112,102,92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[152,142,132,122,112,102,92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[162,152,142,132,122,112,102,92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[172,162,152,142,132,122,112,102,92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[182,172,162,152,142,132,122,112,102,92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[192,182,172,162,152,142,132,122,112,102,92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1],@[202,192,182,172,162,152,142,132,122,112,102,92,82,72,62,52,42,32,22,12,2,1,9,8,7,6,5,4,3,2,1]],@[@[3,2,1],@[13,3,2,1,9,8,7,6,5,4,3,2,1],@[23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[103,93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[113,103,93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[123,113,103,93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[133,123,113,103,93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[143,133,123,113,103,93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[153,143,133,123,113,103,93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[163,153,143,133,123,113,103,93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[173,163,153,143,133,123,113,103,93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[183,173,163,153,143,133,123,113,103,93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[193,183,173,163,153,143,133,123,113,103,93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1],@[203,193,183,173,163,153,143,133,123,113,103,93,83,73,63,53,43,33,23,13,3,2,1,9,8,7,6,5,4,3,2,1]],@[@[4,3,2,1],@[14,4,3,2,1,9,8,7,6,5,4,3,2,1],@[24,14,4,3,2,1,9,8,7,6,5,4,3,2,1],@[34,24,14,4,3,2,1,9,8,7,6,5,4,3,2,1],@[44,34,24,14,4,3,2,1,9,8,7,6,5,4,3,2,1],@[54,44,34,24,14,4,3,2,1,9,8,7,6,5,4,3,2,1],@[64,54,44,34,24,14,4,3,2,1,9,8,7,6,5,4,3,2,1],@[74,64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9,8,7,6,5,4,3,2,1]],@[@[17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[117,107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[127,117,107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[137,127,117,107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[147,137,127,117,107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[157,147,137,127,117,107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[167,157,147,137,127,117,107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[177,167,157,147,137,127,117,107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[187,177,167,157,147,137,127,117,107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[197,187,177,167,157,147,137,127,117,107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[207,197,187,177,167,157,147,137,127,117,107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[217,207,197,187,177,167,157,147,137,127,117,107,97,87,77,67,57,47,37,27,17,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1]],@[@[18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[118,108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[128,118,108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[138,128,118,108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[148,138,128,118,108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[158,148,138,128,118,108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[168,158,148,138,128,118,108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[178,168,158,148,138,128,118,108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[188,178,168,158,148,138,128,118,108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[198,188,178,168,158,148,138,128,118,108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[208,198,188,178,168,158,148,138,128,118,108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[218,208,198,188,178,168,158,148,138,128,118,108,98,88,78,68,58,48,38,28,18,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1]],@[@[19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[119,109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[129,119,109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[139,129,119,109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[149,139,129,119,109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[159,149,139,129,119,109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[169,159,149,139,129,119,109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[179,169,159,149,139,129,119,109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[189,179,169,159,149,139,129,119,109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[199,189,179,169,159,149,139,129,119,109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[209,199,189,179,169,159,149,139,129,119,109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[219,209,199,189,179,169,159,149,139,129,119,109,99,89,79,69,59,49,39,29,19,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1]],@[@[20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[170,160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[180,170,160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[190,180,170,160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[200,190,180,170,160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[210,200,190,180,170,160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1],@[220,210,200,190,180,170,160,150,140,130,120,110,100,90,80,70,60,50,40,30,20,10,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1,9,8,7,6,5,4,3,2,1]]]
if a >= ABC.len or b >= ABC[a].len or c >= ABC[a][b].len : quit "Impossible",0
let ans = ABC[a][b][c]
if ans <= 0 : echo "Impossible"
else: echo ans