fixed compiler warnings which was caused by mixing up signed and unsigend datatypes. issue #6
fixed compiler warnings which was caused by mixing up signed and unsigend datatypes. issue #6

AMOS-ss16-proj3/amos-ss16-proj3,AMOS-ss16-proj3/amos-ss16-proj3,AMOS-ss16-proj3/amos-ss16-proj3,AMOS-ss16-proj3/amos-ss16-proj3,AMOS-ss16-proj3/amos-ss16-proj3