Futoshiki

Fill in the squares so that each row and column contains each of the numbers 1 to 7 exactly once. An arrow shows whether a number is higher or lower than its neighbour, with the point of the arrow pointing to the lower number.

HINTS:

You may find it useful when solving these puzzles to look for chains of squares connected by arrows.

Try also to place as many 1s and 7s as you can: 1s cannot of course be greater than any other number and 7s cannot be lower than any other number.