- 0: lambda i,v,x: '',
- 1: lambda i,v,x: i,
- 2: lambda i,v,x: i+i,
- 3: lambda i,v,x: i+i+i,
- 4: lambda i,v,x: i+v,
- 5: lambda i,v,x: v,
- 6: lambda i,v,x: v+i,
- 7: lambda i,v,x: v+i+i,
- 8: lambda i,v,x: v+i+i+i,
- 9: lambda i,v,x: i+x,
+ 0: lambda i, v, x: '',
+ 1: lambda i, v, x: i,
+ 2: lambda i, v, x: i+i,
+ 3: lambda i, v, x: i+i+i,
+ 4: lambda i, v, x: i+v,
+ 5: lambda i, v, x: v,
+ 6: lambda i, v, x: v+i,
+ 7: lambda i, v, x: v+i+i,
+ 8: lambda i, v, x: v+i+i+i,
+ 9: lambda i, v, x: i+x,