# Python | Merging two strings with Suffix and Prefix

Given two strings A and B and these strings contain lower case letters. The task is to tell the length of the merged strings. For example, given A is “abcde” and B is “cdefg”, then merging the two strings results in “abcdefg”. The merge operation is performed in such a manner that the joining characters are both the suffix of A and Prefix of B.
Before merging you are allowed to do any ONE of the following operations:

1. Reverse string A
2. Reverse string B

Examples:

```Input :
A = "ababc"
B = "bcabc"
Output :
Length is 8

the suffix of string A i.e "bc" and prefix of B i.e "bc" is the same
so the merged string will be "ababcabc" and length is 8.

Input :
A = "cdefg"
B = "abhgf"
Output :
Length is 8

the suffix of string A i.e "fg" and prefix of  reversed B i.e "fg" is the same
so the merged string will be "cdefghba" and length is 8

Input :
A = "wxyz"
B = "zyxw"
Output :
Length is 4
```

Below is the Python code implementation of the above mentioned approach.

 `# function to find the length of the ` `# merged string ` ` `  `def` `mergedstring(x, y) : ` `     `  `    ``k ``=` `len``(y) ` `    ``for` `i ``in` `range``(``len``(x)) : ` `         `  `        ``if` `x[i:] ``=``=` `y[:k] : ` `            ``break` `        ``else``: ` `            ``k ``=` `k``-``1` ` `  `    ``# uncomment the below statement to ` `    ``# know what the merged string is ` `    ``# print(a + b[k:]) ` `    ``return` `len``(a ``+` `b[k:]) ` ` `  `# function to find the minimum length ` `# among the  merged string ` `def` `merger(a, b): ` `    ``# reverse b  ` `    ``b1 ``=` `b[::``-``1``]  ` ` `  `    ``# function call to find the length ` `    ``# of string without reversing string 'B' ` `    ``r1 ``=` `mergedstring(a, b) ` ` `  `    ``# function call to find the length ` `    ``# of the string by reversing string 'B' ` `    ``r2 ``=` `mergedstring(a, b1) ` ` `  `    ``# compare between lengths ` `    ``if` `r1 > r2 : ` `        ``print``(``"Length is"``, r2) ` `    ``else` `: ` `        ``print``(``"Length is"``, r1) ` `             `  `# driver code ` `a ``=` `"abcbc"` `b ``=` `"bcabc"` ` `  `merger(a, b) `

Output:

```Length is 8
```

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