# lambda_demo.py

# lambda_demo.py

var = [0,1,2,3,4,5]
a = lambda z: (z+1)%len(var)
print a(-1) # 0
print a(0) # 1
print a(1) # 2
print a(2) # 3
print a(5) # 0
var = [0,1,2,3,4]
print a(5) # 1