Problem F
Identifying Map Tiles
Map websites such as Bing Maps and Google Maps often store their maps as many different image files, called tiles. The lowest zoom level (level $0$) consists of a single tile with a low-detail image of the whole map, zoom level $1$ consists of four tiles each containing a slightly more detailed version of a quarter of the map, and in general zoom level $n$ contains $4^ n$ different tiles that each contain a part of the map.
One way of identifying a tile is by means of a quadkey. A quadkey is a string of digits uniquely identifying a tile at a certain zoom level. The first digit specifies in which of the four quadrants of the whole map the tile lies: 0 for the top-left quadrant, 1 for the top-right quadrant, 2 for the bottom-left quadrant and 3 for the bottom-right quadrant. The subsequent digits specify in which sub quadrant of the current quadrant the tile is. The quadkeys for zoom levels $1$ to $3$ are shown in Figure 1(a).
(a) Quadkeys for zoom levels $1$ to $3$ |
(b) Coordinates for zoom level 3 |
Another way of identifying a tile is to give the zoom level and $x$ and $y$ coordinates, where $(0,0)$ is the left-top corner. The coordinates for the tiles of zoom level 3 are shown in Figure 1(b). Given the quadkey of a tile, output the zoom level and $x$ and $y$ coordinates of that tile.
Input
The input consists of:
-
one line with a string $s$ ($1\leq \text {length}(s) \leq 30$), the quadkey of the map tile.
The string $s$ consists of only the digits ‘0’, ‘1’, ‘2’ and ‘3’.
Output
Output three integers, the zoom level and the $x$ and $y$ coordinates of the tile.
Sample Input 1 | Sample Output 1 |
---|---|
3 |
1 1 1 |
Sample Input 2 | Sample Output 2 |
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130 |
3 6 2 |