The first line contains two integers R and C (2 <= R, C <= 1000).The following R lines, each contains C*3 real numbers, at 2 decimal places. Every three numbers make a group. The first, second and third number of the cth group of line r represent the probability of transportation to grid (r, c), grid (r, c+1), grid (r+1, c) of the portal in grid (r, c) respectively. Two groups of numbers are separated by 4 spaces.It is ensured that the sum of three numbers in each group is 1, and the second numbers of the rightmost groups are 0 (as there are no grids on the right of them) while the third numbers of the downmost groups are 0 (as there are no grids below them).You may ignore the last three numbers of the input data. They are printed just for looking neat.The answer is ensured no greater than 1000000.Terminal at EOF
，在时间里面我们什么也不能留下，包括痛苦，快乐和生命。
