Hi everyone, thank you for taking the time

I have two data frame that i wish to merge in a specific way

If we simplify stuff it would look like that :

df1 :

A | B

a | 23

b | 10

c | 8

d | 43

e | 29

df2 :

A' | C

a | 4

c | 9

d | 18

I'm looking to have a data frame with

df3 :

A | B | C

a | 23 | 4

b | 10 |

c | 8 | 9

d | 43 | 18

e | 29 |

Thank you