#include <cstdio>#include <cstring>#include <cstdlib>using namespace std;#define MAX_ROW 205#define MAX_COLUMN MAX_ROWint row, column;char grid[MAX_ROW][MAX_COLUMN];void input(){ memset(grid, 0, sizeof(grid)); for (int i = 0; i < row; i++) scanf("%s", grid[i]);}void work(){ int direction = -1; //1 is right, 0 is left int s_cnt = 0; int x = 0; int y = 0; while (grid[x][y] != 'S') y++; s_cnt++; while (x < row) { if (y != 0 && grid[x][y - 1] == 'S') { direction = 0; while (y > 0 && grid[x][y - 1] == 'S') y--, s_cnt++; x++, s_cnt++; continue; } if (y + 1 < column && grid[x][y + 1] == 'S') { if (direction == -1) s_cnt--; if (direction == 0) s_cnt -= 2; direction = 1; while (y + 1 < column && grid[x][y + 1] == 'S') y++, s_cnt++; x++, s_cnt++; continue; } x++, s_cnt++; } if (direction == 0) s_cnt--; printf("%dn", s_cnt - 1);}int main(){ while (scanf("%d%d", &row, &column), row | column) { input(); work(); } return 0;}
