file 1	file 2	# same commits	# commits file 1	# commits file 2
ubx.c	serial.c	2	32	51
usb.c	serial.c	2	4	51
ubx.c	sirf.c	2	32	100
usb.c	ubx.c	2	4	32
sirf.c	mtk.c	2	100	20
sirf.c	serial.c	2	100	51
usb.c	mtk.c	2	4	20
usb.c	sirf.c	2	4	100
serial.c	mtk.c	2	51	20
ubx.c	mtk.c	2	32	20