N <- 1000 x <- c(4,7,2,1,0,1,5,0,2,0,5,6,7,9,0,6,0,8,5,4,0,9,0,5,0,4,0,3,2,5,7,5,3,2,0,6,5,6,7,3,5,0,0,2,5,8,4,3,3,6,7,7,0,0,5,6,3,0,5,9,0,9,0,3,0,0,5,5,6,3,5,2,5,4,4,3,5,0,3,9,2,2,0,3,8,0,8,0,0,5,0,3,7,5,5,0,5,5,5,6,0,0,6,7,5,6,7,2,5,6,5,5,0,0,5,3,0,6,6,8,5,0,4,0,0,3,5,5,5,7,3,5,7,9,0,0,3,0,0,0,4,2,7,8,8,4,5,5,7,3,9,0,5,5,3,4,7,8,5,9,0,3,3,4,0,3,7,2,0,0,4,5,5,7,6,5,2,4,0,0,0,5,6,8,0,9,8,4,9,7,4,5,0,2,9,5,0,6,9,7,1,8,0,4,1,0,0,0,6,0,5,7,4,0,4,3,3,0,0,2,5,5,6,0,4,5,3,0,9,0,5,3,5,7,3,0,5,5,4,2,0,0,8,4,7,0,3,7,0,4,5,2,0,6,0,6,3,6,0,0,6,5,2,1,0,0,5,5,3,5,4,3,0,2,4,0,0,7,0,5,8,0,3,0,0,2,6,0,0,5,6,9,7,3,0,5,0,0,6,9,8,9,0,2,0,0,3,0,0,0,3,6,5,4,2,0,6,4,0,0,2,0,7,0,3,0,0,0,5,0,0,4,6,2,6,6,5,4,4,0,0,3,5,5,7,2,5,9,0,3,4,0,3,0,9,0,0,5,8,0,9,5,3,4,0,8,6,7,2,4,4,0,0,5,5,3,0,4,6,1,0,9,0,0,0,4,0,0,0,5,0,4,0,0,4,7,7,4,7,8,5,9,3,5,0,0,6,0,2,5,1,6,3,3,0,1,2,0,4,4,7,0,9,0,4,3,6,4,3,7,0,0,0,6,3,8,0,6,2,4,0,4,3,0,5,7,5,0,6,3,3,6,5,3,8,9,0,0,9,0,7,3,7,4,2,8,5,6,7,0,7,8,3,6,3,2,6,9,3,0,0,9,4,4,3,3,0,4,3,0,0,4,8,5,0,3,7,3,4,3,4,7,0,0,0,4,4,0,3,7,5,5,0,4,8,5,8,6,4,0,0,3,0,6,5,8,5,5,8,3,3,0,7,5,0,4,0,0,2,5,3,6,7,6,7,0,4,0,7,7,6,0,8,0,1,0,6,4,2,0,2,5,6,0,3,7,6,0,0,0,7,6,2,6,4,0,0,0,6,0,8,8,5,2,5,7,8,0,9,0,8,0,5,7,7,3,0,2,7,0,0,0,9,3,6,4,0,8,5,5,0,0,6,4,0,6,3,4,6,4,1,3,0,0,3,6,6,0,3,5,3,0,0,0,0,6,4,3,7,5,4,4,7,2,6,0,0,7,5,4,3,0,6,5,0,2,7,0,0,4,0,5,5,8,8,8,3,0,0,2,0,4,0,7,7,0,7,6,3,2,0,8,6,0,8,7,0,3,2,5,1,0,0,9,5,0,6,0,0,5,4,5,5,2,6,0,7,5,5,0,0,5,0,3,5,5,6,5,0,3,5,5,0,3,0,0,6,6,6,5,2,0,3,8,0,0,4,0,6,5,0,4,0,4,9,3,6,4,4,5,0,0,0,5,5,7,4,1,6,0,0,7,0,4,7,5,2,4,0,0,0,4,3,7,3,6,3,6,0,3,4,0,8,5,0,1,6,7,5,5,0,8,0,8,0,1,0,0,0,4,5,8,8,7,2,3,0,0,6,4,4,6,2,2,7,4,6,5,2,0,5,5,0,4,6,5,4,0,0,0,0,0,0,0,3,0,3,6,4,8,8,9,2,2,6,8,5,2,0,0,6,0,3,0,5,0,3,7,0,3,0,4,5,3,6,4,7,4,0,2,7,8,5,5,7,5,4,1,4,0,5,5,0,8,1,0,0,0,0,3,0,2,0,5,2,4,1,4,0,5,1,2,5,4,4,7,3,8,6,8,5,5,4,0,4,1,0,8,5,7,0,5,5,6,4,0,6,3,0,0,7,3,4,6,5,5,7,5,0,5,0,2,7,0,5,3,0,0,5,5,0,4,3,6,0,5,1,6,4,5,2,8,4,5,0,4,0,4,5,9,5,5,8,0,4,5,0,0,2,6,0,4,5,0,0,6,3,0,0,0,4,0,5,0,2,0,6,4,3,4)