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Week 8: December 28 - January 10. Functions. Part 1

Use the function

Three real numbers х, y and z are given. Find min(max(x,y), max(y,z), x+y+z) using the auxiliary functions for calculation the minimum and the maximum of two elements.


Three real numbers х, у and z are given in one line. Their values do not exceed 100 by absolute value.


Print the answer with two decimal digits.

Time limit 1 second
Memory limit 128 MiB
Input example #1
1.05 2.25 2.15
Output example #1
Source SFE-2010 Variant 20