#D3989. Where is the Boundary
Where is the Boundary
Where is the Boundary
Example
Input
2 1 WE
Output
1 2
inputFormat
Input
2 1 WE
outputFormat
Output
1 2
样例
2 1
WE1 2
Example
Input
2 1 WE
Output
1 2
Input
2 1 WE
Output
1 2
2 1
WE1 2