B'The polar bears are going fishing. They plan to sail from (sx, xe2 x80 x89sy) to (ex, xe2 x80 x89ey). However, the boat can only sail by wind. At each second, the wind blows in one of these directions: east, south, west or north. Assume the boat is currently at (x, xe2 x80 x89y). Alternatively, they can hold the boat by the anchor. In this case, the boat stays at (x, xe2 x80 x89y). Given the wind direction for t seconds, what is the earliest time they sail to (ex, xe2 x80 x89ey)? The first line contains five integers t, xe2 x80 x89sx, xe2 x80 x89sy, xe2 x80 x89ex, xe2 x80 x89ey (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89t xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89105, xe2 x80 x89 xe2 x80 x89- xe2 x80 x89109 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89sx, xe2 x80 x89sy, xe2 x80 x89ex, xe2 x80 x89ey xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89109). The starting location and the ending location will be different. The second line contains t characters, the i-th character is the wind blowing direction at the i-th second. It will be one of the four possibilities: "E" (east), "S" (south), "W" (west) and "N" (north). If they can reach (ex, xe2 x80 x89ey) within t seconds, print the earliest time they can achieve it. Otherwise, print "-1" (without quotes). In the first sample, they can stay at seconds 1, 3, and move at seconds 2, 4. In the second sample, they cannot sail to the destination.'...