The Alien

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An alien is chasing after Raj and Ravi. Raj screams at times p,p+x,p+2x,p+3x,... and Ravi screams at times q,q+y,q+2 y,q+3y,.... The Monster will catch them if at any point they scream at the same time. Input- - The first line contains two integers x and p(1≤x,p≤100). - The second line contains two integers y and q(1≤y,q≤100). Output - - Print the first time they will scream at the same time

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solution.cppC++17

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