PROGRAMMING:Mischievous multiplication
###Task description
```
Teacher X gave his students a 2-digit mathematical multiplication problem AB * CD, but he wrote both the multiplicand and multiplier wrong,
It is written as xaxb * cxdx (x is a 1-bit random number), that is, 1-bit integer is added before each digit in the multiplicand,
After each digit of the multiplier, mix in an integer. Now I give you the formula: xaxb * cxdx,
Can you get the answer to the original question?
```
###Input format:
In one line, give the contaminated formula: xaxb * cxdx. A, B, C, D and x represent one digit.
###Output format:
Output the original formula and result according to the sample format.
###Input example:
```in
1234*5678
```
###Output example:
```out
24*57=1368
```
answer：If there is no answer, please comment
```
Teacher X gave his students a 2-digit mathematical multiplication problem AB * CD, but he wrote both the multiplicand and multiplier wrong,
It is written as xaxb * cxdx (x is a 1-bit random number), that is, 1-bit integer is added before each digit in the multiplicand,
After each digit of the multiplier, mix in an integer. Now I give you the formula: xaxb * cxdx,
Can you get the answer to the original question?
```
###Input format:
In one line, give the contaminated formula: xaxb * cxdx. A, B, C, D and x represent one digit.
###Output format:
Output the original formula and result according to the sample format.
###Input example:
```in
1234*5678
```
###Output example:
```out
24*57=1368
```
answer：If there is no answer, please comment