A convex pentagon $FGHIJ$ has side lengths $FG=5$, $GH=6$, $HI=3$, $IJ=4$, and $JF=7$. The pentagon is originally positioned in the plane with vertex $F$ at the origin and vertex $G$ on the positive $x$-axis. The pentagon is then rolled clockwise to the right along the $x$-axis. Which side will touch the point $x=1800$ on the $x$-axis?