คิดเล่นๆ ได้ประมาณว่า
input a,b,c
if a>b and a>c and a*a = b*b + c*c
a =- 1
if b>c
b =- 1
else
c =- 1
else if b>a and b>c and b*b = a*a + c*c
b = -1
if a>c
a = -1
else
c = -1
else if c>a and c>b and c*c = a*a + b*b
c= -1
if a>b
a = -1
else
c = -1
if b = -1 and c = -1
print a*a
else if a = -1 and c =-1
print b*b
else if a = -1 and b = -1
print c*c
else
print 'not triangle'
