Codeforces Round 156 (Div. 2)


A. Greg's Workout
time limit per test: 2 seconds
memory limit per test: 256 megabytes
input: standard input
output: standard output

Examples
Input
2
2 8
Output
biceps
Input
3
5 1 10
Output
back
Input
7
3 3 2 7 9 6 8
Output
chest
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B. Code Parsing
time limit per test: 2 seconds
memory limit per test: 256 megabytes
input: standard input
output: standard output

Examples
Input
x
Output
x
Input
yxyxy
Output
y
Input
xxxxxy
Output
xxxx
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C. Almost Arithmetical Progression
time limit per test: 1 second
memory limit per test: 256 megabytes
input: standard input
output: standard output

Examples
Input
2
3 5
Output
2
Input
4
10 20 10 30
Output
3
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D. Mr. Bender and Square
time limit per test: 2 seconds
memory limit per test: 256 megabytes
input: standard input
output: standard output

Examples
Input
6 4 3 1
Output
0
Input
9 3 8 10
Output
2
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E. Furlo and Rublo and Game
time limit per test: 2 seconds
memory limit per test: 256 megabytes
input: standard input
output: standard output

Examples
Input
1
1
Output
Rublo
Input
2
1 2
Output
Rublo
Input
10
1 2 3 4 5 6 7 8 9 10
Output
Furlo
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