解题

[马力西古]

Write a program that will read one line of input from the terminal. The input is supposed to consist of two parts separated by a colon :. As its result, your program should produce a single character as follows:
N No colon on the line.
L The left part (before the colon) is longer than the right.
R The right part (after the colon) is longer than the left.
D The left and right parts have the same length but are different.
S The left and right parts are exactly the same.
Examples:
Input Output
Sample Sample N
Left:Right R
Sample:Sample S
Dog:Cat D
Rabbit:Dog L
【输入】
字符串的数量n
第2到n+1行分别输入需要分析的字符串
【输出】
N条字符串的判断结果
例如：
【输入】
3
Sample Sample
Dog:Cat
Rabbit:Dog
【输出】
N
D
L

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