Your shell command is malformed. You used
gcc instruction Arthematic declearation.c -o instruction Arthematic declearation
when you should have used
gcc "instruction Arthematic declearation.c" -o "instruction Arthematic declearation"
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…