x,y: 0 0
    Added the coordinate: 2 1.
    Added the coordinate: 1 2.
x,y: 2 1
    Added the coordinate: 4 2.
    Added the coordinate: 4 0.
    Added the coordinate: 0 2.
    Added the coordinate: 3 3.
    Added the coordinate: 1 3.
x,y: 1 2
    Added the coordinate: 3 1.
    Added the coordinate: 2 4.
    Added the coordinate: 0 4.
    Added the coordinate: 2 0.
x,y: 4 2
    Added the coordinate: 6 3.
    Added the coordinate: 6 1.
    Added the coordinate: 2 3.
    Added the coordinate: 5 4.
    Added the coordinate: 3 4.
    Added the coordinate: 5 0.
    Added the coordinate: 3 0.
x,y: 4 0
    Added the coordinate: 5 2.
    Added the coordinate: 3 2.
x,y: 0 2
    Added the coordinate: 1 4.
    Added the coordinate: 1 0.
x,y: 3 3
    Added the coordinate: 4 5.
    Added the coordinate: 2 5.
    Added the coordinate: 4 1.
x,y: 1 3
    Added the coordinate: 0 5.
    Added the coordinate: 0 1.
x,y: 3 1
    Added the coordinate: 4 3.
x,y: 2 4
    Added the coordinate: 0 3.
    Added the coordinate: 3 6.
    Added the coordinate: 1 6.
x,y: 0 4
x,y: 2 0
x,y: 6 3
    Added the coordinate: 4 4.
    Added the coordinate: 7 5.
    Added the coordinate: 5 5.
    Added the coordinate: 7 1.
    Added the coordinate: 5 1.
x,y: 6 1
    Added the coordinate: 7 3.
    Added the coordinate: 5 3.
x,y: 2 3
    Added the coordinate: 3 5.
    Added the coordinate: 1 5.
    Added the coordinate: 1 1.
x,y: 5 4
    Added the coordinate: 6 6.
    Added the coordinate: 4 6.
    Added the coordinate: 6 2.
x,y: 3 4
    Added the coordinate: 2 6.
    Added the coordinate: 2 2.
x,y: 5 0
x,y: 3 0
x,y: 5 2
    Added the coordinate: 6 4.
    Added the coordinate: 6 0.
x,y: 3 2
x,y: 1 4
    Added the coordinate: 0 6.
x,y: 1 0
x,y: 4 5
    Added the coordinate: 5 7.
    Added the coordinate: 3 7.
x,y: 2 5
    Added the coordinate: 1 7.
x,y: 4 1
x,y: 0 5
x,y: 0 1
x,y: 4 3
x,y: 0 3
x,y: 3 6
x,y: 1 6
x,y: 4 4
    Added the coordinate: 6 5.
    Added the coordinate: 5 6.
x,y: 7 5
    Added the coordinate: 6 7.
x,y: 5 5
    Added the coordinate: 7 6.
    Added the coordinate: 7 4.
    Added the coordinate: 4 7.
x,y: 7 1
x,y: 5 1
    Added the coordinate: 7 2.
    Added the coordinate: 7 0.
x,y: 7 3
x,y: 5 3
x,y: 3 5
    Added the coordinate: 2 7.
x,y: 1 5
    Added the coordinate: 0 7.
x,y: 1 1
x,y: 6 6
x,y: 4 6
x,y: 6 2
x,y: 2 6
x,y: 2 2
x,y: 6 4
x,y: 6 0
x,y: 0 6
x,y: 5 7
x,y: 3 7
x,y: 1 7
x,y: 6 5
    Added the coordinate: 7 7.
x,y: 5 6
x,y: 6 7
x,y: 7 6
x,y: 7 4
x,y: 4 7
x,y: 7 2
x,y: 7 0
x,y: 2 7
x,y: 0 7
x,y: 7 7
ratsu(0,0,7,7)=6