Input two strings, cross will correspond to the letters form the third string, finally to enter the third string, such as the input of two of the strings were "abcd" and "1234", is the combined strings "a1b2c3d4", if two ranging from the length of the string, string is one of the spare part on the results of the end of the string, such as two of the strings were "banana" and "12", is the combined strings "b1a2nana
"Requirements: the first letter of the first string is always the first letter of the string,

The format
Input format

Such as input:
The abcd
1234

The output format

Output:
a1b2c3d4

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reference 6 floor response:

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CodePudding user response:

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