import java.io.IOException; import java.io.InputStream; import java.util.Arrays; import java.util.NoSuchElementException; import java.util.Scanner; class Main { public static void main(String[] args) { new Main().run(); } int[] f(int cost,int a,int b) { int over=a+10*b-cost; return new int[] {over%10,over/10}; } void run() { Scanner sc=new Scanner(System.in); int A=sc.nextInt(); int B=sc.nextInt(); int C=sc.nextInt(); long[][] dp=new long[A+1+10*B][B+1+A/10]; for(int i=0;i0;--res) { for(int b=0;10*b<=res;++b) { int a=res-10*b; if(a>=dp.length||dp[a][b]==Long.MAX_VALUE/3)continue; for(int cost=1;cost<=res;++cost) { for(int use_a=0;use_a<=a;++use_a) { for(int use_b=0;use_b<=b;++use_b) { if(use_a+use_b*10=0;++a) { int b=C-a; if(b>=dp[a].length||(a==A&&b==B))continue; ans=Math.min(ans, dp[a][b]); } System.out.println(ans==Long.MAX_VALUE/3?"Impossible":ans); } void tr(Object...objects) {System.out.println(Arrays.deepToString(objects));} } class FastScanner { private final InputStream in = System.in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; private boolean hasNextByte() { if (ptr < buflen) { return true; }else{ ptr = 0; try { buflen = in.read(buffer); } catch (IOException e) { e.printStackTrace(); } if (buflen <= 0) { return false; } } return true; } private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;} private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;} public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();} public String next() { if (!hasNext()) throw new NoSuchElementException(); StringBuilder sb = new StringBuilder(); int b = readByte(); while(isPrintableChar(b)) { sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } public long nextLong() { if (!hasNext()) throw new NoSuchElementException(); long n = 0; boolean minus = false; int b = readByte(); if (b == '-') { minus = true; b = readByte(); } if (b < '0' || '9' < b) { throw new NumberFormatException(); } while(true){ if ('0' <= b && b <= '9') { n *= 10; n += b - '0'; }else if(b == -1 || !isPrintableChar(b)){ return minus ? -n : n; }else{ throw new NumberFormatException(); } b = readByte(); } } public int nextInt() { long nl = nextLong(); if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException(); return (int) nl; } public double nextDouble() { return Double.parseDouble(next());} }